(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.dexlibs = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
//! moment.js
//! version : 2.18.1
//! authors : Tim Wood, Iskren Chernev, Moment.js contributors
//! license : MIT
//! momentjs.com

;(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
    typeof define === 'function' && define.amd ? define(factory) :
      global.moment = factory()
}(this, (function () {

  var hookCallback;

  function hooks () {
    return hookCallback.apply(null, arguments);
  }

// This is done to register the method called with moment()
// without creating circular dependencies.
  function setHookCallback (callback) {
    hookCallback = callback;
  }

  function isArray(input) {
    return input instanceof Array || Object.prototype.toString.call(input) === '[object Array]';
  }

  function isObject(input) {
    // IE8 will treat undefined and null as object if it wasn't for
    // input != null
    return input != null && Object.prototype.toString.call(input) === '[object Object]';
  }

  function isObjectEmpty(obj) {
    var k;
    for (k in obj) {
      // even if its not own property I'd still call it non-empty
      return false;
    }
    return true;
  }

  function isUndefined(input) {
    return input === void 0;
  }

  function isNumber(input) {
    return typeof input === 'number' || Object.prototype.toString.call(input) === '[object Number]';
  }

  function isDate(input) {
    return input instanceof Date || Object.prototype.toString.call(input) === '[object Date]';
  }

  function map(arr, fn) {
    var res = [], i;
    for (i = 0; i < arr.length; ++i) {
      res.push(fn(arr[i], i));
    }
    return res;
  }

  function hasOwnProp(a, b) {
    return Object.prototype.hasOwnProperty.call(a, b);
  }

  function extend(a, b) {
    for (var i in b) {
      if (hasOwnProp(b, i)) {
        a[i] = b[i];
      }
    }

    if (hasOwnProp(b, 'toString')) {
      a.toString = b.toString;
    }

    if (hasOwnProp(b, 'valueOf')) {
      a.valueOf = b.valueOf;
    }

    return a;
  }

  function createUTC (input, format, locale, strict) {
    return createLocalOrUTC(input, format, locale, strict, true).utc();
  }

  function defaultParsingFlags() {
    // We need to deep clone this object.
    return {
      empty           : false,
      unusedTokens    : [],
      unusedInput     : [],
      overflow        : -2,
      charsLeftOver   : 0,
      nullInput       : false,
      invalidMonth    : null,
      invalidFormat   : false,
      userInvalidated : false,
      iso             : false,
      parsedDateParts : [],
      meridiem        : null,
      rfc2822         : false,
      weekdayMismatch : false
    };
  }

  function getParsingFlags(m) {
    if (m._pf == null) {
      m._pf = defaultParsingFlags();
    }
    return m._pf;
  }

  var some;
  if (Array.prototype.some) {
    some = Array.prototype.some;
  } else {
    some = function (fun) {
      var t = Object(this);
      var len = t.length >>> 0;

      for (var i = 0; i < len; i++) {
        if (i in t && fun.call(this, t[i], i, t)) {
          return true;
        }
      }

      return false;
    };
  }

  var some$1 = some;

  function isValid(m) {
    if (m._isValid == null) {
      var flags = getParsingFlags(m);
      var parsedParts = some$1.call(flags.parsedDateParts, function (i) {
        return i != null;
      });
      var isNowValid = !isNaN(m._d.getTime()) &&
        flags.overflow < 0 &&
        !flags.empty &&
        !flags.invalidMonth &&
        !flags.invalidWeekday &&
        !flags.nullInput &&
        !flags.invalidFormat &&
        !flags.userInvalidated &&
        (!flags.meridiem || (flags.meridiem && parsedParts));

      if (m._strict) {
        isNowValid = isNowValid &&
          flags.charsLeftOver === 0 &&
          flags.unusedTokens.length === 0 &&
          flags.bigHour === undefined;
      }

      if (Object.isFrozen == null || !Object.isFrozen(m)) {
        m._isValid = isNowValid;
      }
      else {
        return isNowValid;
      }
    }
    return m._isValid;
  }

  function createInvalid (flags) {
    var m = createUTC(NaN);
    if (flags != null) {
      extend(getParsingFlags(m), flags);
    }
    else {
      getParsingFlags(m).userInvalidated = true;
    }

    return m;
  }

// Plugins that add properties should also add the key here (null value),
// so we can properly clone ourselves.
  var momentProperties = hooks.momentProperties = [];

  function copyConfig(to, from) {
    var i, prop, val;

    if (!isUndefined(from._isAMomentObject)) {
      to._isAMomentObject = from._isAMomentObject;
    }
    if (!isUndefined(from._i)) {
      to._i = from._i;
    }
    if (!isUndefined(from._f)) {
      to._f = from._f;
    }
    if (!isUndefined(from._l)) {
      to._l = from._l;
    }
    if (!isUndefined(from._strict)) {
      to._strict = from._strict;
    }
    if (!isUndefined(from._tzm)) {
      to._tzm = from._tzm;
    }
    if (!isUndefined(from._isUTC)) {
      to._isUTC = from._isUTC;
    }
    if (!isUndefined(from._offset)) {
      to._offset = from._offset;
    }
    if (!isUndefined(from._pf)) {
      to._pf = getParsingFlags(from);
    }
    if (!isUndefined(from._locale)) {
      to._locale = from._locale;
    }

    if (momentProperties.length > 0) {
      for (i = 0; i < momentProperties.length; i++) {
        prop = momentProperties[i];
        val = from[prop];
        if (!isUndefined(val)) {
          to[prop] = val;
        }
      }
    }

    return to;
  }

  var updateInProgress = false;

// Moment prototype object
  function Moment(config) {
    copyConfig(this, config);
    this._d = new Date(config._d != null ? config._d.getTime() : NaN);
    if (!this.isValid()) {
      this._d = new Date(NaN);
    }
    // Prevent infinite loop in case updateOffset creates new moment
    // objects.
    if (updateInProgress === false) {
      updateInProgress = true;
      hooks.updateOffset(this);
      updateInProgress = false;
    }
  }

  function isMoment (obj) {
    return obj instanceof Moment || (obj != null && obj._isAMomentObject != null);
  }

  function absFloor (number) {
    if (number < 0) {
      // -0 -> 0
      return Math.ceil(number) || 0;
    } else {
      return Math.floor(number);
    }
  }

  function toInt(argumentForCoercion) {
    var coercedNumber = +argumentForCoercion,
      value = 0;

    if (coercedNumber !== 0 && isFinite(coercedNumber)) {
      value = absFloor(coercedNumber);
    }

    return value;
  }

// compare two arrays, return the number of differences
  function compareArrays(array1, array2, dontConvert) {
    var len = Math.min(array1.length, array2.length),
      lengthDiff = Math.abs(array1.length - array2.length),
      diffs = 0,
      i;
    for (i = 0; i < len; i++) {
      if ((dontConvert && array1[i] !== array2[i]) ||
        (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))) {
        diffs++;
      }
    }
    return diffs + lengthDiff;
  }

  function warn(msg) {
    if (hooks.suppressDeprecationWarnings === false &&
      (typeof console !==  'undefined') && console.warn) {
      console.warn('Deprecation warning: ' + msg);
    }
  }

  function deprecate(msg, fn) {
    var firstTime = true;

    return extend(function () {
      if (hooks.deprecationHandler != null) {
        hooks.deprecationHandler(null, msg);
      }
      if (firstTime) {
        var args = [];
        var arg;
        for (var i = 0; i < arguments.length; i++) {
          arg = '';
          if (typeof arguments[i] === 'object') {
            arg += '\n[' + i + '] ';
            for (var key in arguments[0]) {
              arg += key + ': ' + arguments[0][key] + ', ';
            }
            arg = arg.slice(0, -2); // Remove trailing comma and space
          } else {
            arg = arguments[i];
          }
          args.push(arg);
        }
        warn(msg + '\nArguments: ' + Array.prototype.slice.call(args).join('') + '\n' + (new Error()).stack);
        firstTime = false;
      }
      return fn.apply(this, arguments);
    }, fn);
  }

  var deprecations = {};

  function deprecateSimple(name, msg) {
    if (hooks.deprecationHandler != null) {
      hooks.deprecationHandler(name, msg);
    }
    if (!deprecations[name]) {
      warn(msg);
      deprecations[name] = true;
    }
  }

  hooks.suppressDeprecationWarnings = false;
  hooks.deprecationHandler = null;

  function isFunction(input) {
    return input instanceof Function || Object.prototype.toString.call(input) === '[object Function]';
  }

  function set (config) {
    var prop, i;
    for (i in config) {
      prop = config[i];
      if (isFunction(prop)) {
        this[i] = prop;
      } else {
        this['_' + i] = prop;
      }
    }
    this._config = config;
    // Lenient ordinal parsing accepts just a number in addition to
    // number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
    // TODO: Remove "ordinalParse" fallback in next major release.
    this._dayOfMonthOrdinalParseLenient = new RegExp(
      (this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +
      '|' + (/\d{1,2}/).source);
  }

  function mergeConfigs(parentConfig, childConfig) {
    var res = extend({}, parentConfig), prop;
    for (prop in childConfig) {
      if (hasOwnProp(childConfig, prop)) {
        if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
          res[prop] = {};
          extend(res[prop], parentConfig[prop]);
          extend(res[prop], childConfig[prop]);
        } else if (childConfig[prop] != null) {
          res[prop] = childConfig[prop];
        } else {
          delete res[prop];
        }
      }
    }
    for (prop in parentConfig) {
      if (hasOwnProp(parentConfig, prop) &&
        !hasOwnProp(childConfig, prop) &&
        isObject(parentConfig[prop])) {
        // make sure changes to properties don't modify parent config
        res[prop] = extend({}, res[prop]);
      }
    }
    return res;
  }

  function Locale(config) {
    if (config != null) {
      this.set(config);
    }
  }

  var keys;

  if (Object.keys) {
    keys = Object.keys;
  } else {
    keys = function (obj) {
      var i, res = [];
      for (i in obj) {
        if (hasOwnProp(obj, i)) {
          res.push(i);
        }
      }
      return res;
    };
  }

  var keys$1 = keys;

  var defaultCalendar = {
    sameDay : '[Today at] LT',
    nextDay : '[Tomorrow at] LT',
    nextWeek : 'dddd [at] LT',
    lastDay : '[Yesterday at] LT',
    lastWeek : '[Last] dddd [at] LT',
    sameElse : 'L'
  };

  function calendar (key, mom, now) {
    var output = this._calendar[key] || this._calendar['sameElse'];
    return isFunction(output) ? output.call(mom, now) : output;
  }

  var defaultLongDateFormat = {
    LTS  : 'h:mm:ss A',
    LT   : 'h:mm A',
    L    : 'MM/DD/YYYY',
    LL   : 'MMMM D, YYYY',
    LLL  : 'MMMM D, YYYY h:mm A',
    LLLL : 'dddd, MMMM D, YYYY h:mm A'
  };

  function longDateFormat (key) {
    var format = this._longDateFormat[key],
      formatUpper = this._longDateFormat[key.toUpperCase()];

    if (format || !formatUpper) {
      return format;
    }

    this._longDateFormat[key] = formatUpper.replace(/MMMM|MM|DD|dddd/g, function (val) {
      return val.slice(1);
    });

    return this._longDateFormat[key];
  }

  var defaultInvalidDate = 'Invalid date';

  function invalidDate () {
    return this._invalidDate;
  }

  var defaultOrdinal = '%d';
  var defaultDayOfMonthOrdinalParse = /\d{1,2}/;

  function ordinal (number) {
    return this._ordinal.replace('%d', number);
  }

  var defaultRelativeTime = {
    future : 'in %s',
    past   : '%s ago',
    s  : 'a few seconds',
    ss : '%d seconds',
    m  : 'a minute',
    mm : '%d minutes',
    h  : 'an hour',
    hh : '%d hours',
    d  : 'a day',
    dd : '%d days',
    M  : 'a month',
    MM : '%d months',
    y  : 'a year',
    yy : '%d years'
  };

  function relativeTime (number, withoutSuffix, string, isFuture) {
    var output = this._relativeTime[string];
    return (isFunction(output)) ?
      output(number, withoutSuffix, string, isFuture) :
      output.replace(/%d/i, number);
  }

  function pastFuture (diff, output) {
    var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
    return isFunction(format) ? format(output) : format.replace(/%s/i, output);
  }

  var aliases = {};

  function addUnitAlias (unit, shorthand) {
    var lowerCase = unit.toLowerCase();
    aliases[lowerCase] = aliases[lowerCase + 's'] = aliases[shorthand] = unit;
  }

  function normalizeUnits(units) {
    return typeof units === 'string' ? aliases[units] || aliases[units.toLowerCase()] : undefined;
  }

  function normalizeObjectUnits(inputObject) {
    var normalizedInput = {},
      normalizedProp,
      prop;

    for (prop in inputObject) {
      if (hasOwnProp(inputObject, prop)) {
        normalizedProp = normalizeUnits(prop);
        if (normalizedProp) {
          normalizedInput[normalizedProp] = inputObject[prop];
        }
      }
    }

    return normalizedInput;
  }

  var priorities = {};

  function addUnitPriority(unit, priority) {
    priorities[unit] = priority;
  }

  function getPrioritizedUnits(unitsObj) {
    var units = [];
    for (var u in unitsObj) {
      units.push({unit: u, priority: priorities[u]});
    }
    units.sort(function (a, b) {
      return a.priority - b.priority;
    });
    return units;
  }

  function makeGetSet (unit, keepTime) {
    return function (value) {
      if (value != null) {
        set$1(this, unit, value);
        hooks.updateOffset(this, keepTime);
        return this;
      } else {
        return get(this, unit);
      }
    };
  }

  function get (mom, unit) {
    return mom.isValid() ?
      mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]() : NaN;
  }

  function set$1 (mom, unit, value) {
    if (mom.isValid()) {
      mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);
    }
  }

// MOMENTS

  function stringGet (units) {
    units = normalizeUnits(units);
    if (isFunction(this[units])) {
      return this[units]();
    }
    return this;
  }


  function stringSet (units, value) {
    if (typeof units === 'object') {
      units = normalizeObjectUnits(units);
      var prioritized = getPrioritizedUnits(units);
      for (var i = 0; i < prioritized.length; i++) {
        this[prioritized[i].unit](units[prioritized[i].unit]);
      }
    } else {
      units = normalizeUnits(units);
      if (isFunction(this[units])) {
        return this[units](value);
      }
    }
    return this;
  }

  function zeroFill(number, targetLength, forceSign) {
    var absNumber = '' + Math.abs(number),
      zerosToFill = targetLength - absNumber.length,
      sign = number >= 0;
    return (sign ? (forceSign ? '+' : '') : '-') +
      Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) + absNumber;
  }

  var formattingTokens = /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|YYYYYY|YYYYY|YYYY|YY|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g;

  var localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g;

  var formatFunctions = {};

  var formatTokenFunctions = {};

// token:    'M'
// padded:   ['MM', 2]
// ordinal:  'Mo'
// callback: function () { this.month() + 1 }
  function addFormatToken (token, padded, ordinal, callback) {
    var func = callback;
    if (typeof callback === 'string') {
      func = function () {
        return this[callback]();
      };
    }
    if (token) {
      formatTokenFunctions[token] = func;
    }
    if (padded) {
      formatTokenFunctions[padded[0]] = function () {
        return zeroFill(func.apply(this, arguments), padded[1], padded[2]);
      };
    }
    if (ordinal) {
      formatTokenFunctions[ordinal] = function () {
        return this.localeData().ordinal(func.apply(this, arguments), token);
      };
    }
  }

  function removeFormattingTokens(input) {
    if (input.match(/\[[\s\S]/)) {
      return input.replace(/^\[|\]$/g, '');
    }
    return input.replace(/\\/g, '');
  }

  function makeFormatFunction(format) {
    var array = format.match(formattingTokens), i, length;

    for (i = 0, length = array.length; i < length; i++) {
      if (formatTokenFunctions[array[i]]) {
        array[i] = formatTokenFunctions[array[i]];
      } else {
        array[i] = removeFormattingTokens(array[i]);
      }
    }

    return function (mom) {
      var output = '', i;
      for (i = 0; i < length; i++) {
        output += isFunction(array[i]) ? array[i].call(mom, format) : array[i];
      }
      return output;
    };
  }

// format date using native date object
  function formatMoment(m, format) {
    if (!m.isValid()) {
      return m.localeData().invalidDate();
    }

    format = expandFormat(format, m.localeData());
    formatFunctions[format] = formatFunctions[format] || makeFormatFunction(format);

    return formatFunctions[format](m);
  }

  function expandFormat(format, locale) {
    var i = 5;

    function replaceLongDateFormatTokens(input) {
      return locale.longDateFormat(input) || input;
    }

    localFormattingTokens.lastIndex = 0;
    while (i >= 0 && localFormattingTokens.test(format)) {
      format = format.replace(localFormattingTokens, replaceLongDateFormatTokens);
      localFormattingTokens.lastIndex = 0;
      i -= 1;
    }

    return format;
  }

  var match1         = /\d/;            //       0 - 9
  var match2         = /\d\d/;          //      00 - 99
  var match3         = /\d{3}/;         //     000 - 999
  var match4         = /\d{4}/;         //    0000 - 9999
  var match6         = /[+-]?\d{6}/;    // -999999 - 999999
  var match1to2      = /\d\d?/;         //       0 - 99
  var match3to4      = /\d\d\d\d?/;     //     999 - 9999
  var match5to6      = /\d\d\d\d\d\d?/; //   99999 - 999999
  var match1to3      = /\d{1,3}/;       //       0 - 999
  var match1to4      = /\d{1,4}/;       //       0 - 9999
  var match1to6      = /[+-]?\d{1,6}/;  // -999999 - 999999

  var matchUnsigned  = /\d+/;           //       0 - inf
  var matchSigned    = /[+-]?\d+/;      //    -inf - inf

  var matchOffset    = /Z|[+-]\d\d:?\d\d/gi; // +00:00 -00:00 +0000 -0000 or Z
  var matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi; // +00 -00 +00:00 -00:00 +0000 -0000 or Z

  var matchTimestamp = /[+-]?\d+(\.\d{1,3})?/; // 123456789 123456789.123

// any word (or two) characters or numbers including two/three word month in arabic.
// includes scottish gaelic two word and hyphenated months
  var matchWord = /[0-9]*['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+|[\u0600-\u06FF\/]+(\s*?[\u0600-\u06FF]+){1,2}/i;


  var regexes = {};

  function addRegexToken (token, regex, strictRegex) {
    regexes[token] = isFunction(regex) ? regex : function (isStrict, localeData) {
      return (isStrict && strictRegex) ? strictRegex : regex;
    };
  }

  function getParseRegexForToken (token, config) {
    if (!hasOwnProp(regexes, token)) {
      return new RegExp(unescapeFormat(token));
    }

    return regexes[token](config._strict, config._locale);
  }

// Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
  function unescapeFormat(s) {
    return regexEscape(s.replace('\\', '').replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (matched, p1, p2, p3, p4) {
      return p1 || p2 || p3 || p4;
    }));
  }

  function regexEscape(s) {
    return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
  }

  var tokens = {};

  function addParseToken (token, callback) {
    var i, func = callback;
    if (typeof token === 'string') {
      token = [token];
    }
    if (isNumber(callback)) {
      func = function (input, array) {
        array[callback] = toInt(input);
      };
    }
    for (i = 0; i < token.length; i++) {
      tokens[token[i]] = func;
    }
  }

  function addWeekParseToken (token, callback) {
    addParseToken(token, function (input, array, config, token) {
      config._w = config._w || {};
      callback(input, config._w, config, token);
    });
  }

  function addTimeToArrayFromToken(token, input, config) {
    if (input != null && hasOwnProp(tokens, token)) {
      tokens[token](input, config._a, config, token);
    }
  }

  var YEAR = 0;
  var MONTH = 1;
  var DATE = 2;
  var HOUR = 3;
  var MINUTE = 4;
  var SECOND = 5;
  var MILLISECOND = 6;
  var WEEK = 7;
  var WEEKDAY = 8;

  var indexOf;

  if (Array.prototype.indexOf) {
    indexOf = Array.prototype.indexOf;
  } else {
    indexOf = function (o) {
      // I know
      var i;
      for (i = 0; i < this.length; ++i) {
        if (this[i] === o) {
          return i;
        }
      }
      return -1;
    };
  }

  var indexOf$1 = indexOf;

  function daysInMonth(year, month) {
    return new Date(Date.UTC(year, month + 1, 0)).getUTCDate();
  }

// FORMATTING

  addFormatToken('M', ['MM', 2], 'Mo', function () {
    return this.month() + 1;
  });

  addFormatToken('MMM', 0, 0, function (format) {
    return this.localeData().monthsShort(this, format);
  });

  addFormatToken('MMMM', 0, 0, function (format) {
    return this.localeData().months(this, format);
  });

// ALIASES

  addUnitAlias('month', 'M');

// PRIORITY

  addUnitPriority('month', 8);

// PARSING

  addRegexToken('M',    match1to2);
  addRegexToken('MM',   match1to2, match2);
  addRegexToken('MMM',  function (isStrict, locale) {
    return locale.monthsShortRegex(isStrict);
  });
  addRegexToken('MMMM', function (isStrict, locale) {
    return locale.monthsRegex(isStrict);
  });

  addParseToken(['M', 'MM'], function (input, array) {
    array[MONTH] = toInt(input) - 1;
  });

  addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
    var month = config._locale.monthsParse(input, token, config._strict);
    // if we didn't find a month name, mark the date as invalid.
    if (month != null) {
      array[MONTH] = month;
    } else {
      getParsingFlags(config).invalidMonth = input;
    }
  });

// LOCALES

  var MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/;
  var defaultLocaleMonths = 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_');
  function localeMonths (m, format) {
    if (!m) {
      return isArray(this._months) ? this._months :
        this._months['standalone'];
    }
    return isArray(this._months) ? this._months[m.month()] :
      this._months[(this._months.isFormat || MONTHS_IN_FORMAT).test(format) ? 'format' : 'standalone'][m.month()];
  }

  var defaultLocaleMonthsShort = 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_');
  function localeMonthsShort (m, format) {
    if (!m) {
      return isArray(this._monthsShort) ? this._monthsShort :
        this._monthsShort['standalone'];
    }
    return isArray(this._monthsShort) ? this._monthsShort[m.month()] :
      this._monthsShort[MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'][m.month()];
  }

  function handleStrictParse(monthName, format, strict) {
    var i, ii, mom, llc = monthName.toLocaleLowerCase();
    if (!this._monthsParse) {
      // this is not used
      this._monthsParse = [];
      this._longMonthsParse = [];
      this._shortMonthsParse = [];
      for (i = 0; i < 12; ++i) {
        mom = createUTC([2000, i]);
        this._shortMonthsParse[i] = this.monthsShort(mom, '').toLocaleLowerCase();
        this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();
      }
    }

    if (strict) {
      if (format === 'MMM') {
        ii = indexOf$1.call(this._shortMonthsParse, llc);
        return ii !== -1 ? ii : null;
      } else {
        ii = indexOf$1.call(this._longMonthsParse, llc);
        return ii !== -1 ? ii : null;
      }
    } else {
      if (format === 'MMM') {
        ii = indexOf$1.call(this._shortMonthsParse, llc);
        if (ii !== -1) {
          return ii;
        }
        ii = indexOf$1.call(this._longMonthsParse, llc);
        return ii !== -1 ? ii : null;
      } else {
        ii = indexOf$1.call(this._longMonthsParse, llc);
        if (ii !== -1) {
          return ii;
        }
        ii = indexOf$1.call(this._shortMonthsParse, llc);
        return ii !== -1 ? ii : null;
      }
    }
  }

  function localeMonthsParse (monthName, format, strict) {
    var i, mom, regex;

    if (this._monthsParseExact) {
      return handleStrictParse.call(this, monthName, format, strict);
    }

    if (!this._monthsParse) {
      this._monthsParse = [];
      this._longMonthsParse = [];
      this._shortMonthsParse = [];
    }

    // TODO: add sorting
    // Sorting makes sure if one month (or abbr) is a prefix of another
    // see sorting in computeMonthsParse
    for (i = 0; i < 12; i++) {
      // make the regex if we don't have it already
      mom = createUTC([2000, i]);
      if (strict && !this._longMonthsParse[i]) {
        this._longMonthsParse[i] = new RegExp('^' + this.months(mom, '').replace('.', '') + '$', 'i');
        this._shortMonthsParse[i] = new RegExp('^' + this.monthsShort(mom, '').replace('.', '') + '$', 'i');
      }
      if (!strict && !this._monthsParse[i]) {
        regex = '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
        this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
      }
      // test the regex
      if (strict && format === 'MMMM' && this._longMonthsParse[i].test(monthName)) {
        return i;
      } else if (strict && format === 'MMM' && this._shortMonthsParse[i].test(monthName)) {
        return i;
      } else if (!strict && this._monthsParse[i].test(monthName)) {
        return i;
      }
    }
  }

// MOMENTS

  function setMonth (mom, value) {
    var dayOfMonth;

    if (!mom.isValid()) {
      // No op
      return mom;
    }

    if (typeof value === 'string') {
      if (/^\d+$/.test(value)) {
        value = toInt(value);
      } else {
        value = mom.localeData().monthsParse(value);
        // TODO: Another silent failure?
        if (!isNumber(value)) {
          return mom;
        }
      }
    }

    dayOfMonth = Math.min(mom.date(), daysInMonth(mom.year(), value));
    mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth);
    return mom;
  }

  function getSetMonth (value) {
    if (value != null) {
      setMonth(this, value);
      hooks.updateOffset(this, true);
      return this;
    } else {
      return get(this, 'Month');
    }
  }

  function getDaysInMonth () {
    return daysInMonth(this.year(), this.month());
  }

  var defaultMonthsShortRegex = matchWord;
  function monthsShortRegex (isStrict) {
    if (this._monthsParseExact) {
      if (!hasOwnProp(this, '_monthsRegex')) {
        computeMonthsParse.call(this);
      }
      if (isStrict) {
        return this._monthsShortStrictRegex;
      } else {
        return this._monthsShortRegex;
      }
    } else {
      if (!hasOwnProp(this, '_monthsShortRegex')) {
        this._monthsShortRegex = defaultMonthsShortRegex;
      }
      return this._monthsShortStrictRegex && isStrict ?
        this._monthsShortStrictRegex : this._monthsShortRegex;
    }
  }

  var defaultMonthsRegex = matchWord;
  function monthsRegex (isStrict) {
    if (this._monthsParseExact) {
      if (!hasOwnProp(this, '_monthsRegex')) {
        computeMonthsParse.call(this);
      }
      if (isStrict) {
        return this._monthsStrictRegex;
      } else {
        return this._monthsRegex;
      }
    } else {
      if (!hasOwnProp(this, '_monthsRegex')) {
        this._monthsRegex = defaultMonthsRegex;
      }
      return this._monthsStrictRegex && isStrict ?
        this._monthsStrictRegex : this._monthsRegex;
    }
  }

  function computeMonthsParse () {
    function cmpLenRev(a, b) {
      return b.length - a.length;
    }

    var shortPieces = [], longPieces = [], mixedPieces = [],
      i, mom;
    for (i = 0; i < 12; i++) {
      // make the regex if we don't have it already
      mom = createUTC([2000, i]);
      shortPieces.push(this.monthsShort(mom, ''));
      longPieces.push(this.months(mom, ''));
      mixedPieces.push(this.months(mom, ''));
      mixedPieces.push(this.monthsShort(mom, ''));
    }
    // Sorting makes sure if one month (or abbr) is a prefix of another it
    // will match the longer piece.
    shortPieces.sort(cmpLenRev);
    longPieces.sort(cmpLenRev);
    mixedPieces.sort(cmpLenRev);
    for (i = 0; i < 12; i++) {
      shortPieces[i] = regexEscape(shortPieces[i]);
      longPieces[i] = regexEscape(longPieces[i]);
    }
    for (i = 0; i < 24; i++) {
      mixedPieces[i] = regexEscape(mixedPieces[i]);
    }

    this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
    this._monthsShortRegex = this._monthsRegex;
    this._monthsStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
    this._monthsShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
  }

// FORMATTING

  addFormatToken('Y', 0, 0, function () {
    var y = this.year();
    return y <= 9999 ? '' + y : '+' + y;
  });

  addFormatToken(0, ['YY', 2], 0, function () {
    return this.year() % 100;
  });

  addFormatToken(0, ['YYYY',   4],       0, 'year');
  addFormatToken(0, ['YYYYY',  5],       0, 'year');
  addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');

// ALIASES

  addUnitAlias('year', 'y');

// PRIORITIES

  addUnitPriority('year', 1);

// PARSING

  addRegexToken('Y',      matchSigned);
  addRegexToken('YY',     match1to2, match2);
  addRegexToken('YYYY',   match1to4, match4);
  addRegexToken('YYYYY',  match1to6, match6);
  addRegexToken('YYYYYY', match1to6, match6);

  addParseToken(['YYYYY', 'YYYYYY'], YEAR);
  addParseToken('YYYY', function (input, array) {
    array[YEAR] = input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
  });
  addParseToken('YY', function (input, array) {
    array[YEAR] = hooks.parseTwoDigitYear(input);
  });
  addParseToken('Y', function (input, array) {
    array[YEAR] = parseInt(input, 10);
  });

// HELPERS

  function daysInYear(year) {
    return isLeapYear(year) ? 366 : 365;
  }

  function isLeapYear(year) {
    return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
  }

// HOOKS

  hooks.parseTwoDigitYear = function (input) {
    return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
  };

// MOMENTS

  var getSetYear = makeGetSet('FullYear', true);

  function getIsLeapYear () {
    return isLeapYear(this.year());
  }

  function createDate (y, m, d, h, M, s, ms) {
    // can't just apply() to create a date:
    // https://stackoverflow.com/q/181348
    var date = new Date(y, m, d, h, M, s, ms);

    // the date constructor remaps years 0-99 to 1900-1999
    if (y < 100 && y >= 0 && isFinite(date.getFullYear())) {
      date.setFullYear(y);
    }
    return date;
  }

  function createUTCDate (y) {
    var date = new Date(Date.UTC.apply(null, arguments));

    // the Date.UTC function remaps years 0-99 to 1900-1999
    if (y < 100 && y >= 0 && isFinite(date.getUTCFullYear())) {
      date.setUTCFullYear(y);
    }
    return date;
  }

// start-of-first-week - start-of-year
  function firstWeekOffset(year, dow, doy) {
    var // first-week day -- which january is always in the first week (4 for iso, 1 for other)
      fwd = 7 + dow - doy,
      // first-week day local weekday -- which local weekday is fwd
      fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;

    return -fwdlw + fwd - 1;
  }

// https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
  function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
    var localWeekday = (7 + weekday - dow) % 7,
      weekOffset = firstWeekOffset(year, dow, doy),
      dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
      resYear, resDayOfYear;

    if (dayOfYear <= 0) {
      resYear = year - 1;
      resDayOfYear = daysInYear(resYear) + dayOfYear;
    } else if (dayOfYear > daysInYear(year)) {
      resYear = year + 1;
      resDayOfYear = dayOfYear - daysInYear(year);
    } else {
      resYear = year;
      resDayOfYear = dayOfYear;
    }

    return {
      year: resYear,
      dayOfYear: resDayOfYear
    };
  }

  function weekOfYear(mom, dow, doy) {
    var weekOffset = firstWeekOffset(mom.year(), dow, doy),
      week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
      resWeek, resYear;

    if (week < 1) {
      resYear = mom.year() - 1;
      resWeek = week + weeksInYear(resYear, dow, doy);
    } else if (week > weeksInYear(mom.year(), dow, doy)) {
      resWeek = week - weeksInYear(mom.year(), dow, doy);
      resYear = mom.year() + 1;
    } else {
      resYear = mom.year();
      resWeek = week;
    }

    return {
      week: resWeek,
      year: resYear
    };
  }

  function weeksInYear(year, dow, doy) {
    var weekOffset = firstWeekOffset(year, dow, doy),
      weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
    return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
  }

// FORMATTING

  addFormatToken('w', ['ww', 2], 'wo', 'week');
  addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');

// ALIASES

  addUnitAlias('week', 'w');
  addUnitAlias('isoWeek', 'W');

// PRIORITIES

  addUnitPriority('week', 5);
  addUnitPriority('isoWeek', 5);

// PARSING

  addRegexToken('w',  match1to2);
  addRegexToken('ww', match1to2, match2);
  addRegexToken('W',  match1to2);
  addRegexToken('WW', match1to2, match2);

  addWeekParseToken(['w', 'ww', 'W', 'WW'], function (input, week, config, token) {
    week[token.substr(0, 1)] = toInt(input);
  });

// HELPERS

// LOCALES

  function localeWeek (mom) {
    return weekOfYear(mom, this._week.dow, this._week.doy).week;
  }

  var defaultLocaleWeek = {
    dow : 0, // Sunday is the first day of the week.
    doy : 6  // The week that contains Jan 1st is the first week of the year.
  };

  function localeFirstDayOfWeek () {
    return this._week.dow;
  }

  function localeFirstDayOfYear () {
    return this._week.doy;
  }

// MOMENTS

  function getSetWeek (input) {
    var week = this.localeData().week(this);
    return input == null ? week : this.add((input - week) * 7, 'd');
  }

  function getSetISOWeek (input) {
    var week = weekOfYear(this, 1, 4).week;
    return input == null ? week : this.add((input - week) * 7, 'd');
  }

// FORMATTING

  addFormatToken('d', 0, 'do', 'day');

  addFormatToken('dd', 0, 0, function (format) {
    return this.localeData().weekdaysMin(this, format);
  });

  addFormatToken('ddd', 0, 0, function (format) {
    return this.localeData().weekdaysShort(this, format);
  });

  addFormatToken('dddd', 0, 0, function (format) {
    return this.localeData().weekdays(this, format);
  });

  addFormatToken('e', 0, 0, 'weekday');
  addFormatToken('E', 0, 0, 'isoWeekday');

// ALIASES

  addUnitAlias('day', 'd');
  addUnitAlias('weekday', 'e');
  addUnitAlias('isoWeekday', 'E');

// PRIORITY
  addUnitPriority('day', 11);
  addUnitPriority('weekday', 11);
  addUnitPriority('isoWeekday', 11);

// PARSING

  addRegexToken('d',    match1to2);
  addRegexToken('e',    match1to2);
  addRegexToken('E',    match1to2);
  addRegexToken('dd',   function (isStrict, locale) {
    return locale.weekdaysMinRegex(isStrict);
  });
  addRegexToken('ddd',   function (isStrict, locale) {
    return locale.weekdaysShortRegex(isStrict);
  });
  addRegexToken('dddd',   function (isStrict, locale) {
    return locale.weekdaysRegex(isStrict);
  });

  addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
    var weekday = config._locale.weekdaysParse(input, token, config._strict);
    // if we didn't get a weekday name, mark the date as invalid
    if (weekday != null) {
      week.d = weekday;
    } else {
      getParsingFlags(config).invalidWeekday = input;
    }
  });

  addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
    week[token] = toInt(input);
  });

// HELPERS

  function parseWeekday(input, locale) {
    if (typeof input !== 'string') {
      return input;
    }

    if (!isNaN(input)) {
      return parseInt(input, 10);
    }

    input = locale.weekdaysParse(input);
    if (typeof input === 'number') {
      return input;
    }

    return null;
  }

  function parseIsoWeekday(input, locale) {
    if (typeof input === 'string') {
      return locale.weekdaysParse(input) % 7 || 7;
    }
    return isNaN(input) ? null : input;
  }

// LOCALES

  var defaultLocaleWeekdays = 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_');
  function localeWeekdays (m, format) {
    if (!m) {
      return isArray(this._weekdays) ? this._weekdays :
        this._weekdays['standalone'];
    }
    return isArray(this._weekdays) ? this._weekdays[m.day()] :
      this._weekdays[this._weekdays.isFormat.test(format) ? 'format' : 'standalone'][m.day()];
  }

  var defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_');
  function localeWeekdaysShort (m) {
    return (m) ? this._weekdaysShort[m.day()] : this._weekdaysShort;
  }

  var defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_');
  function localeWeekdaysMin (m) {
    return (m) ? this._weekdaysMin[m.day()] : this._weekdaysMin;
  }

  function handleStrictParse$1(weekdayName, format, strict) {
    var i, ii, mom, llc = weekdayName.toLocaleLowerCase();
    if (!this._weekdaysParse) {
      this._weekdaysParse = [];
      this._shortWeekdaysParse = [];
      this._minWeekdaysParse = [];

      for (i = 0; i < 7; ++i) {
        mom = createUTC([2000, 1]).day(i);
        this._minWeekdaysParse[i] = this.weekdaysMin(mom, '').toLocaleLowerCase();
        this._shortWeekdaysParse[i] = this.weekdaysShort(mom, '').toLocaleLowerCase();
        this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();
      }
    }

    if (strict) {
      if (format === 'dddd') {
        ii = indexOf$1.call(this._weekdaysParse, llc);
        return ii !== -1 ? ii : null;
      } else if (format === 'ddd') {
        ii = indexOf$1.call(this._shortWeekdaysParse, llc);
        return ii !== -1 ? ii : null;
      } else {
        ii = indexOf$1.call(this._minWeekdaysParse, llc);
        return ii !== -1 ? ii : null;
      }
    } else {
      if (format === 'dddd') {
        ii = indexOf$1.call(this._weekdaysParse, llc);
        if (ii !== -1) {
          return ii;
        }
        ii = indexOf$1.call(this._shortWeekdaysParse, llc);
        if (ii !== -1) {
          return ii;
        }
        ii = indexOf$1.call(this._minWeekdaysParse, llc);
        return ii !== -1 ? ii : null;
      } else if (format === 'ddd') {
        ii = indexOf$1.call(this._shortWeekdaysParse, llc);
        if (ii !== -1) {
          return ii;
        }
        ii = indexOf$1.call(this._weekdaysParse, llc);
        if (ii !== -1) {
          return ii;
        }
        ii = indexOf$1.call(this._minWeekdaysParse, llc);
        return ii !== -1 ? ii : null;
      } else {
        ii = indexOf$1.call(this._minWeekdaysParse, llc);
        if (ii !== -1) {
          return ii;
        }
        ii = indexOf$1.call(this._weekdaysParse, llc);
        if (ii !== -1) {
          return ii;
        }
        ii = indexOf$1.call(this._shortWeekdaysParse, llc);
        return ii !== -1 ? ii : null;
      }
    }
  }

  function localeWeekdaysParse (weekdayName, format, strict) {
    var i, mom, regex;

    if (this._weekdaysParseExact) {
      return handleStrictParse$1.call(this, weekdayName, format, strict);
    }

    if (!this._weekdaysParse) {
      this._weekdaysParse = [];
      this._minWeekdaysParse = [];
      this._shortWeekdaysParse = [];
      this._fullWeekdaysParse = [];
    }

    for (i = 0; i < 7; i++) {
      // make the regex if we don't have it already

      mom = createUTC([2000, 1]).day(i);
      if (strict && !this._fullWeekdaysParse[i]) {
        this._fullWeekdaysParse[i] = new RegExp('^' + this.weekdays(mom, '').replace('.', '\.?') + '$', 'i');
        this._shortWeekdaysParse[i] = new RegExp('^' + this.weekdaysShort(mom, '').replace('.', '\.?') + '$', 'i');
        this._minWeekdaysParse[i] = new RegExp('^' + this.weekdaysMin(mom, '').replace('.', '\.?') + '$', 'i');
      }
      if (!this._weekdaysParse[i]) {
        regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, '');
        this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
      }
      // test the regex
      if (strict && format === 'dddd' && this._fullWeekdaysParse[i].test(weekdayName)) {
        return i;
      } else if (strict && format === 'ddd' && this._shortWeekdaysParse[i].test(weekdayName)) {
        return i;
      } else if (strict && format === 'dd' && this._minWeekdaysParse[i].test(weekdayName)) {
        return i;
      } else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
        return i;
      }
    }
  }

// MOMENTS

  function getSetDayOfWeek (input) {
    if (!this.isValid()) {
      return input != null ? this : NaN;
    }
    var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
    if (input != null) {
      input = parseWeekday(input, this.localeData());
      return this.add(input - day, 'd');
    } else {
      return day;
    }
  }

  function getSetLocaleDayOfWeek (input) {
    if (!this.isValid()) {
      return input != null ? this : NaN;
    }
    var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
    return input == null ? weekday : this.add(input - weekday, 'd');
  }

  function getSetISODayOfWeek (input) {
    if (!this.isValid()) {
      return input != null ? this : NaN;
    }

    // behaves the same as moment#day except
    // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
    // as a setter, sunday should belong to the previous week.

    if (input != null) {
      var weekday = parseIsoWeekday(input, this.localeData());
      return this.day(this.day() % 7 ? weekday : weekday - 7);
    } else {
      return this.day() || 7;
    }
  }

  var defaultWeekdaysRegex = matchWord;
  function weekdaysRegex (isStrict) {
    if (this._weekdaysParseExact) {
      if (!hasOwnProp(this, '_weekdaysRegex')) {
        computeWeekdaysParse.call(this);
      }
      if (isStrict) {
        return this._weekdaysStrictRegex;
      } else {
        return this._weekdaysRegex;
      }
    } else {
      if (!hasOwnProp(this, '_weekdaysRegex')) {
        this._weekdaysRegex = defaultWeekdaysRegex;
      }
      return this._weekdaysStrictRegex && isStrict ?
        this._weekdaysStrictRegex : this._weekdaysRegex;
    }
  }

  var defaultWeekdaysShortRegex = matchWord;
  function weekdaysShortRegex (isStrict) {
    if (this._weekdaysParseExact) {
      if (!hasOwnProp(this, '_weekdaysRegex')) {
        computeWeekdaysParse.call(this);
      }
      if (isStrict) {
        return this._weekdaysShortStrictRegex;
      } else {
        return this._weekdaysShortRegex;
      }
    } else {
      if (!hasOwnProp(this, '_weekdaysShortRegex')) {
        this._weekdaysShortRegex = defaultWeekdaysShortRegex;
      }
      return this._weekdaysShortStrictRegex && isStrict ?
        this._weekdaysShortStrictRegex : this._weekdaysShortRegex;
    }
  }

  var defaultWeekdaysMinRegex = matchWord;
  function weekdaysMinRegex (isStrict) {
    if (this._weekdaysParseExact) {
      if (!hasOwnProp(this, '_weekdaysRegex')) {
        computeWeekdaysParse.call(this);
      }
      if (isStrict) {
        return this._weekdaysMinStrictRegex;
      } else {
        return this._weekdaysMinRegex;
      }
    } else {
      if (!hasOwnProp(this, '_weekdaysMinRegex')) {
        this._weekdaysMinRegex = defaultWeekdaysMinRegex;
      }
      return this._weekdaysMinStrictRegex && isStrict ?
        this._weekdaysMinStrictRegex : this._weekdaysMinRegex;
    }
  }


  function computeWeekdaysParse () {
    function cmpLenRev(a, b) {
      return b.length - a.length;
    }

    var minPieces = [], shortPieces = [], longPieces = [], mixedPieces = [],
      i, mom, minp, shortp, longp;
    for (i = 0; i < 7; i++) {
      // make the regex if we don't have it already
      mom = createUTC([2000, 1]).day(i);
      minp = this.weekdaysMin(mom, '');
      shortp = this.weekdaysShort(mom, '');
      longp = this.weekdays(mom, '');
      minPieces.push(minp);
      shortPieces.push(shortp);
      longPieces.push(longp);
      mixedPieces.push(minp);
      mixedPieces.push(shortp);
      mixedPieces.push(longp);
    }
    // Sorting makes sure if one weekday (or abbr) is a prefix of another it
    // will match the longer piece.
    minPieces.sort(cmpLenRev);
    shortPieces.sort(cmpLenRev);
    longPieces.sort(cmpLenRev);
    mixedPieces.sort(cmpLenRev);
    for (i = 0; i < 7; i++) {
      shortPieces[i] = regexEscape(shortPieces[i]);
      longPieces[i] = regexEscape(longPieces[i]);
      mixedPieces[i] = regexEscape(mixedPieces[i]);
    }

    this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
    this._weekdaysShortRegex = this._weekdaysRegex;
    this._weekdaysMinRegex = this._weekdaysRegex;

    this._weekdaysStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
    this._weekdaysShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
    this._weekdaysMinStrictRegex = new RegExp('^(' + minPieces.join('|') + ')', 'i');
  }

// FORMATTING

  function hFormat() {
    return this.hours() % 12 || 12;
  }

  function kFormat() {
    return this.hours() || 24;
  }

  addFormatToken('H', ['HH', 2], 0, 'hour');
  addFormatToken('h', ['hh', 2], 0, hFormat);
  addFormatToken('k', ['kk', 2], 0, kFormat);

  addFormatToken('hmm', 0, 0, function () {
    return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);
  });

  addFormatToken('hmmss', 0, 0, function () {
    return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2) +
      zeroFill(this.seconds(), 2);
  });

  addFormatToken('Hmm', 0, 0, function () {
    return '' + this.hours() + zeroFill(this.minutes(), 2);
  });

  addFormatToken('Hmmss', 0, 0, function () {
    return '' + this.hours() + zeroFill(this.minutes(), 2) +
      zeroFill(this.seconds(), 2);
  });

  function meridiem (token, lowercase) {
    addFormatToken(token, 0, 0, function () {
      return this.localeData().meridiem(this.hours(), this.minutes(), lowercase);
    });
  }

  meridiem('a', true);
  meridiem('A', false);

// ALIASES

  addUnitAlias('hour', 'h');

// PRIORITY
  addUnitPriority('hour', 13);

// PARSING

  function matchMeridiem (isStrict, locale) {
    return locale._meridiemParse;
  }

  addRegexToken('a',  matchMeridiem);
  addRegexToken('A',  matchMeridiem);
  addRegexToken('H',  match1to2);
  addRegexToken('h',  match1to2);
  addRegexToken('k',  match1to2);
  addRegexToken('HH', match1to2, match2);
  addRegexToken('hh', match1to2, match2);
  addRegexToken('kk', match1to2, match2);

  addRegexToken('hmm', match3to4);
  addRegexToken('hmmss', match5to6);
  addRegexToken('Hmm', match3to4);
  addRegexToken('Hmmss', match5to6);

  addParseToken(['H', 'HH'], HOUR);
  addParseToken(['k', 'kk'], function (input, array, config) {
    var kInput = toInt(input);
    array[HOUR] = kInput === 24 ? 0 : kInput;
  });
  addParseToken(['a', 'A'], function (input, array, config) {
    config._isPm = config._locale.isPM(input);
    config._meridiem = input;
  });
  addParseToken(['h', 'hh'], function (input, array, config) {
    array[HOUR] = toInt(input);
    getParsingFlags(config).bigHour = true;
  });
  addParseToken('hmm', function (input, array, config) {
    var pos = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos));
    array[MINUTE] = toInt(input.substr(pos));
    getParsingFlags(config).bigHour = true;
  });
  addParseToken('hmmss', function (input, array, config) {
    var pos1 = input.length - 4;
    var pos2 = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos1));
    array[MINUTE] = toInt(input.substr(pos1, 2));
    array[SECOND] = toInt(input.substr(pos2));
    getParsingFlags(config).bigHour = true;
  });
  addParseToken('Hmm', function (input, array, config) {
    var pos = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos));
    array[MINUTE] = toInt(input.substr(pos));
  });
  addParseToken('Hmmss', function (input, array, config) {
    var pos1 = input.length - 4;
    var pos2 = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos1));
    array[MINUTE] = toInt(input.substr(pos1, 2));
    array[SECOND] = toInt(input.substr(pos2));
  });

// LOCALES

  function localeIsPM (input) {
    // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
    // Using charAt should be more compatible.
    return ((input + '').toLowerCase().charAt(0) === 'p');
  }

  var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i;
  function localeMeridiem (hours, minutes, isLower) {
    if (hours > 11) {
      return isLower ? 'pm' : 'PM';
    } else {
      return isLower ? 'am' : 'AM';
    }
  }


// MOMENTS

// Setting the hour should keep the time, because the user explicitly
// specified which hour he wants. So trying to maintain the same hour (in
// a new timezone) makes sense. Adding/subtracting hours does not follow
// this rule.
  var getSetHour = makeGetSet('Hours', true);

// months
// week
// weekdays
// meridiem
  var baseConfig = {
    calendar: defaultCalendar,
    longDateFormat: defaultLongDateFormat,
    invalidDate: defaultInvalidDate,
    ordinal: defaultOrdinal,
    dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
    relativeTime: defaultRelativeTime,

    months: defaultLocaleMonths,
    monthsShort: defaultLocaleMonthsShort,

    week: defaultLocaleWeek,

    weekdays: defaultLocaleWeekdays,
    weekdaysMin: defaultLocaleWeekdaysMin,
    weekdaysShort: defaultLocaleWeekdaysShort,

    meridiemParse: defaultLocaleMeridiemParse
  };

// internal storage for locale config files
  var locales = {};
  var localeFamilies = {};
  var globalLocale;

  function normalizeLocale(key) {
    return key ? key.toLowerCase().replace('_', '-') : key;
  }

// pick the locale from the array
// try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
// substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
  function chooseLocale(names) {
    var i = 0, j, next, locale, split;

    while (i < names.length) {
      split = normalizeLocale(names[i]).split('-');
      j = split.length;
      next = normalizeLocale(names[i + 1]);
      next = next ? next.split('-') : null;
      while (j > 0) {
        locale = loadLocale(split.slice(0, j).join('-'));
        if (locale) {
          return locale;
        }
        if (next && next.length >= j && compareArrays(split, next, true) >= j - 1) {
          //the next array item is better than a shallower substring of this one
          break;
        }
        j--;
      }
      i++;
    }
    return null;
  }

  function loadLocale(name) {
    var oldLocale = null;
    // TODO: Find a better way to register and load all the locales in Node
    if (!locales[name] && (typeof module !== 'undefined') &&
      module && module.exports) {
      try {
        oldLocale = globalLocale._abbr;
        require('./locale/' + name);
        // because defineLocale currently also sets the global locale, we
        // want to undo that for lazy loaded locales
        getSetGlobalLocale(oldLocale);
      } catch (e) { }
    }
    return locales[name];
  }

// This function will load locale and then set the global locale.  If
// no arguments are passed in, it will simply return the current global
// locale key.
  function getSetGlobalLocale (key, values) {
    var data;
    if (key) {
      if (isUndefined(values)) {
        data = getLocale(key);
      }
      else {
        data = defineLocale(key, values);
      }

      if (data) {
        // moment.duration._locale = moment._locale = data;
        globalLocale = data;
      }
    }

    return globalLocale._abbr;
  }

  function defineLocale (name, config) {
    if (config !== null) {
      var parentConfig = baseConfig;
      config.abbr = name;
      if (locales[name] != null) {
        deprecateSimple('defineLocaleOverride',
          'use moment.updateLocale(localeName, config) to change ' +
          'an existing locale. moment.defineLocale(localeName, ' +
          'config) should only be used for creating a new locale ' +
          'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.');
        parentConfig = locales[name]._config;
      } else if (config.parentLocale != null) {
        if (locales[config.parentLocale] != null) {
          parentConfig = locales[config.parentLocale]._config;
        } else {
          if (!localeFamilies[config.parentLocale]) {
            localeFamilies[config.parentLocale] = [];
          }
          localeFamilies[config.parentLocale].push({
            name: name,
            config: config
          });
          return null;
        }
      }
      locales[name] = new Locale(mergeConfigs(parentConfig, config));

      if (localeFamilies[name]) {
        localeFamilies[name].forEach(function (x) {
          defineLocale(x.name, x.config);
        });
      }

      // backwards compat for now: also set the locale
      // make sure we set the locale AFTER all child locales have been
      // created, so we won't end up with the child locale set.
      getSetGlobalLocale(name);


      return locales[name];
    } else {
      // useful for testing
      delete locales[name];
      return null;
    }
  }

  function updateLocale(name, config) {
    if (config != null) {
      var locale, parentConfig = baseConfig;
      // MERGE
      if (locales[name] != null) {
        parentConfig = locales[name]._config;
      }
      config = mergeConfigs(parentConfig, config);
      locale = new Locale(config);
      locale.parentLocale = locales[name];
      locales[name] = locale;

      // backwards compat for now: also set the locale
      getSetGlobalLocale(name);
    } else {
      // pass null for config to unupdate, useful for tests
      if (locales[name] != null) {
        if (locales[name].parentLocale != null) {
          locales[name] = locales[name].parentLocale;
        } else if (locales[name] != null) {
          delete locales[name];
        }
      }
    }
    return locales[name];
  }

// returns locale data
  function getLocale (key) {
    var locale;

    if (key && key._locale && key._locale._abbr) {
      key = key._locale._abbr;
    }

    if (!key) {
      return globalLocale;
    }

    if (!isArray(key)) {
      //short-circuit everything else
      locale = loadLocale(key);
      if (locale) {
        return locale;
      }
      key = [key];
    }

    return chooseLocale(key);
  }

  function listLocales() {
    return keys$1(locales);
  }

  function checkOverflow (m) {
    var overflow;
    var a = m._a;

    if (a && getParsingFlags(m).overflow === -2) {
      overflow =
        a[MONTH]       < 0 || a[MONTH]       > 11  ? MONTH :
          a[DATE]        < 1 || a[DATE]        > daysInMonth(a[YEAR], a[MONTH]) ? DATE :
            a[HOUR]        < 0 || a[HOUR]        > 24 || (a[HOUR] === 24 && (a[MINUTE] !== 0 || a[SECOND] !== 0 || a[MILLISECOND] !== 0)) ? HOUR :
              a[MINUTE]      < 0 || a[MINUTE]      > 59  ? MINUTE :
                a[SECOND]      < 0 || a[SECOND]      > 59  ? SECOND :
                  a[MILLISECOND] < 0 || a[MILLISECOND] > 999 ? MILLISECOND :
                    -1;

      if (getParsingFlags(m)._overflowDayOfYear && (overflow < YEAR || overflow > DATE)) {
        overflow = DATE;
      }
      if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
        overflow = WEEK;
      }
      if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
        overflow = WEEKDAY;
      }

      getParsingFlags(m).overflow = overflow;
    }

    return m;
  }

// iso 8601 regex
// 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
  var extendedIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
  var basicIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;

  var tzRegex = /Z|[+-]\d\d(?::?\d\d)?/;

  var isoDates = [
    ['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
    ['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
    ['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
    ['GGGG-[W]WW', /\d{4}-W\d\d/, false],
    ['YYYY-DDD', /\d{4}-\d{3}/],
    ['YYYY-MM', /\d{4}-\d\d/, false],
    ['YYYYYYMMDD', /[+-]\d{10}/],
    ['YYYYMMDD', /\d{8}/],
    // YYYYMM is NOT allowed by the standard
    ['GGGG[W]WWE', /\d{4}W\d{3}/],
    ['GGGG[W]WW', /\d{4}W\d{2}/, false],
    ['YYYYDDD', /\d{7}/]
  ];

// iso time formats and regexes
  var isoTimes = [
    ['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
    ['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
    ['HH:mm:ss', /\d\d:\d\d:\d\d/],
    ['HH:mm', /\d\d:\d\d/],
    ['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
    ['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
    ['HHmmss', /\d\d\d\d\d\d/],
    ['HHmm', /\d\d\d\d/],
    ['HH', /\d\d/]
  ];

  var aspNetJsonRegex = /^\/?Date\((\-?\d+)/i;

// date from iso format
  function configFromISO(config) {
    var i, l,
      string = config._i,
      match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
      allowTime, dateFormat, timeFormat, tzFormat;

    if (match) {
      getParsingFlags(config).iso = true;

      for (i = 0, l = isoDates.length; i < l; i++) {
        if (isoDates[i][1].exec(match[1])) {
          dateFormat = isoDates[i][0];
          allowTime = isoDates[i][2] !== false;
          break;
        }
      }
      if (dateFormat == null) {
        config._isValid = false;
        return;
      }
      if (match[3]) {
        for (i = 0, l = isoTimes.length; i < l; i++) {
          if (isoTimes[i][1].exec(match[3])) {
            // match[2] should be 'T' or space
            timeFormat = (match[2] || ' ') + isoTimes[i][0];
            break;
          }
        }
        if (timeFormat == null) {
          config._isValid = false;
          return;
        }
      }
      if (!allowTime && timeFormat != null) {
        config._isValid = false;
        return;
      }
      if (match[4]) {
        if (tzRegex.exec(match[4])) {
          tzFormat = 'Z';
        } else {
          config._isValid = false;
          return;
        }
      }
      config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
      configFromStringAndFormat(config);
    } else {
      config._isValid = false;
    }
  }

// RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
  var basicRfcRegex = /^((?:Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d?\d\s(?:Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(?:\d\d)?\d\d\s)(\d\d:\d\d)(\:\d\d)?(\s(?:UT|GMT|[ECMP][SD]T|[A-IK-Za-ik-z]|[+-]\d{4}))$/;

// date and time from ref 2822 format
  function configFromRFC2822(config) {
    var string, match, dayFormat,
      dateFormat, timeFormat, tzFormat;
    var timezones = {
      ' GMT': ' +0000',
      ' EDT': ' -0400',
      ' EST': ' -0500',
      ' CDT': ' -0500',
      ' CST': ' -0600',
      ' MDT': ' -0600',
      ' MST': ' -0700',
      ' PDT': ' -0700',
      ' PST': ' -0800'
    };
    var military = 'YXWVUTSRQPONZABCDEFGHIKLM';
    var timezone, timezoneIndex;

    string = config._i
      .replace(/\([^\)]*\)|[\n\t]/g, ' ') // Remove comments and folding whitespace
      .replace(/(\s\s+)/g, ' ') // Replace multiple-spaces with a single space
      .replace(/^\s|\s$/g, ''); // Remove leading and trailing spaces
    match = basicRfcRegex.exec(string);

    if (match) {
      dayFormat = match[1] ? 'ddd' + ((match[1].length === 5) ? ', ' : ' ') : '';
      dateFormat = 'D MMM ' + ((match[2].length > 10) ? 'YYYY ' : 'YY ');
      timeFormat = 'HH:mm' + (match[4] ? ':ss' : '');

      // TODO: Replace the vanilla JS Date object with an indepentent day-of-week check.
      if (match[1]) { // day of week given
        var momentDate = new Date(match[2]);
        var momentDay = ['Sun','Mon','Tue','Wed','Thu','Fri','Sat'][momentDate.getDay()];

        if (match[1].substr(0,3) !== momentDay) {
          getParsingFlags(config).weekdayMismatch = true;
          config._isValid = false;
          return;
        }
      }

      switch (match[5].length) {
        case 2: // military
          if (timezoneIndex === 0) {
            timezone = ' +0000';
          } else {
            timezoneIndex = military.indexOf(match[5][1].toUpperCase()) - 12;
            timezone = ((timezoneIndex < 0) ? ' -' : ' +') +
              (('' + timezoneIndex).replace(/^-?/, '0')).match(/..$/)[0] + '00';
          }
          break;
        case 4: // Zone
          timezone = timezones[match[5]];
          break;
        default: // UT or +/-9999
          timezone = timezones[' GMT'];
      }
      match[5] = timezone;
      config._i = match.splice(1).join('');
      tzFormat = ' ZZ';
      config._f = dayFormat + dateFormat + timeFormat + tzFormat;
      configFromStringAndFormat(config);
      getParsingFlags(config).rfc2822 = true;
    } else {
      config._isValid = false;
    }
  }

// date from iso format or fallback
  function configFromString(config) {
    var matched = aspNetJsonRegex.exec(config._i);

    if (matched !== null) {
      config._d = new Date(+matched[1]);
      return;
    }

    configFromISO(config);
    if (config._isValid === false) {
      delete config._isValid;
    } else {
      return;
    }

    configFromRFC2822(config);
    if (config._isValid === false) {
      delete config._isValid;
    } else {
      return;
    }

    // Final attempt, use Input Fallback
    hooks.createFromInputFallback(config);
  }

  hooks.createFromInputFallback = deprecate(
    'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
    'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
    'discouraged and will be removed in an upcoming major release. Please refer to ' +
    'http://momentjs.com/guides/#/warnings/js-date/ for more info.',
    function (config) {
      config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
    }
  );

// Pick the first defined of two or three arguments.
  function defaults(a, b, c) {
    if (a != null) {
      return a;
    }
    if (b != null) {
      return b;
    }
    return c;
  }

  function currentDateArray(config) {
    // hooks is actually the exported moment object
    var nowValue = new Date(hooks.now());
    if (config._useUTC) {
      return [nowValue.getUTCFullYear(), nowValue.getUTCMonth(), nowValue.getUTCDate()];
    }
    return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];
  }

// convert an array to a date.
// the array should mirror the parameters below
// note: all values past the year are optional and will default to the lowest possible value.
// [year, month, day , hour, minute, second, millisecond]
  function configFromArray (config) {
    var i, date, input = [], currentDate, yearToUse;

    if (config._d) {
      return;
    }

    currentDate = currentDateArray(config);

    //compute day of the year from weeks and weekdays
    if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
      dayOfYearFromWeekInfo(config);
    }

    //if the day of the year is set, figure out what it is
    if (config._dayOfYear != null) {
      yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);

      if (config._dayOfYear > daysInYear(yearToUse) || config._dayOfYear === 0) {
        getParsingFlags(config)._overflowDayOfYear = true;
      }

      date = createUTCDate(yearToUse, 0, config._dayOfYear);
      config._a[MONTH] = date.getUTCMonth();
      config._a[DATE] = date.getUTCDate();
    }

    // Default to current date.
    // * if no year, month, day of month are given, default to today
    // * if day of month is given, default month and year
    // * if month is given, default only year
    // * if year is given, don't default anything
    for (i = 0; i < 3 && config._a[i] == null; ++i) {
      config._a[i] = input[i] = currentDate[i];
    }

    // Zero out whatever was not defaulted, including time
    for (; i < 7; i++) {
      config._a[i] = input[i] = (config._a[i] == null) ? (i === 2 ? 1 : 0) : config._a[i];
    }

    // Check for 24:00:00.000
    if (config._a[HOUR] === 24 &&
      config._a[MINUTE] === 0 &&
      config._a[SECOND] === 0 &&
      config._a[MILLISECOND] === 0) {
      config._nextDay = true;
      config._a[HOUR] = 0;
    }

    config._d = (config._useUTC ? createUTCDate : createDate).apply(null, input);
    // Apply timezone offset from input. The actual utcOffset can be changed
    // with parseZone.
    if (config._tzm != null) {
      config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
    }

    if (config._nextDay) {
      config._a[HOUR] = 24;
    }
  }

  function dayOfYearFromWeekInfo(config) {
    var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow;

    w = config._w;
    if (w.GG != null || w.W != null || w.E != null) {
      dow = 1;
      doy = 4;

      // TODO: We need to take the current isoWeekYear, but that depends on
      // how we interpret now (local, utc, fixed offset). So create
      // a now version of current config (take local/utc/offset flags, and
      // create now).
      weekYear = defaults(w.GG, config._a[YEAR], weekOfYear(createLocal(), 1, 4).year);
      week = defaults(w.W, 1);
      weekday = defaults(w.E, 1);
      if (weekday < 1 || weekday > 7) {
        weekdayOverflow = true;
      }
    } else {
      dow = config._locale._week.dow;
      doy = config._locale._week.doy;

      var curWeek = weekOfYear(createLocal(), dow, doy);

      weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);

      // Default to current week.
      week = defaults(w.w, curWeek.week);

      if (w.d != null) {
        // weekday -- low day numbers are considered next week
        weekday = w.d;
        if (weekday < 0 || weekday > 6) {
          weekdayOverflow = true;
        }
      } else if (w.e != null) {
        // local weekday -- counting starts from begining of week
        weekday = w.e + dow;
        if (w.e < 0 || w.e > 6) {
          weekdayOverflow = true;
        }
      } else {
        // default to begining of week
        weekday = dow;
      }
    }
    if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
      getParsingFlags(config)._overflowWeeks = true;
    } else if (weekdayOverflow != null) {
      getParsingFlags(config)._overflowWeekday = true;
    } else {
      temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);
      config._a[YEAR] = temp.year;
      config._dayOfYear = temp.dayOfYear;
    }
  }

// constant that refers to the ISO standard
  hooks.ISO_8601 = function () {};

// constant that refers to the RFC 2822 form
  hooks.RFC_2822 = function () {};

// date from string and format string
  function configFromStringAndFormat(config) {
    // TODO: Move this to another part of the creation flow to prevent circular deps
    if (config._f === hooks.ISO_8601) {
      configFromISO(config);
      return;
    }
    if (config._f === hooks.RFC_2822) {
      configFromRFC2822(config);
      return;
    }
    config._a = [];
    getParsingFlags(config).empty = true;

    // This array is used to make a Date, either with `new Date` or `Date.UTC`
    var string = '' + config._i,
      i, parsedInput, tokens, token, skipped,
      stringLength = string.length,
      totalParsedInputLength = 0;

    tokens = expandFormat(config._f, config._locale).match(formattingTokens) || [];

    for (i = 0; i < tokens.length; i++) {
      token = tokens[i];
      parsedInput = (string.match(getParseRegexForToken(token, config)) || [])[0];
      // console.log('token', token, 'parsedInput', parsedInput,
      //         'regex', getParseRegexForToken(token, config));
      if (parsedInput) {
        skipped = string.substr(0, string.indexOf(parsedInput));
        if (skipped.length > 0) {
          getParsingFlags(config).unusedInput.push(skipped);
        }
        string = string.slice(string.indexOf(parsedInput) + parsedInput.length);
        totalParsedInputLength += parsedInput.length;
      }
      // don't parse if it's not a known token
      if (formatTokenFunctions[token]) {
        if (parsedInput) {
          getParsingFlags(config).empty = false;
        }
        else {
          getParsingFlags(config).unusedTokens.push(token);
        }
        addTimeToArrayFromToken(token, parsedInput, config);
      }
      else if (config._strict && !parsedInput) {
        getParsingFlags(config).unusedTokens.push(token);
      }
    }

    // add remaining unparsed input length to the string
    getParsingFlags(config).charsLeftOver = stringLength - totalParsedInputLength;
    if (string.length > 0) {
      getParsingFlags(config).unusedInput.push(string);
    }

    // clear _12h flag if hour is <= 12
    if (config._a[HOUR] <= 12 &&
      getParsingFlags(config).bigHour === true &&
      config._a[HOUR] > 0) {
      getParsingFlags(config).bigHour = undefined;
    }

    getParsingFlags(config).parsedDateParts = config._a.slice(0);
    getParsingFlags(config).meridiem = config._meridiem;
    // handle meridiem
    config._a[HOUR] = meridiemFixWrap(config._locale, config._a[HOUR], config._meridiem);

    configFromArray(config);
    checkOverflow(config);
  }


  function meridiemFixWrap (locale, hour, meridiem) {
    var isPm;

    if (meridiem == null) {
      // nothing to do
      return hour;
    }
    if (locale.meridiemHour != null) {
      return locale.meridiemHour(hour, meridiem);
    } else if (locale.isPM != null) {
      // Fallback
      isPm = locale.isPM(meridiem);
      if (isPm && hour < 12) {
        hour += 12;
      }
      if (!isPm && hour === 12) {
        hour = 0;
      }
      return hour;
    } else {
      // this is not supposed to happen
      return hour;
    }
  }

// date from string and array of format strings
  function configFromStringAndArray(config) {
    var tempConfig,
      bestMoment,

      scoreToBeat,
      i,
      currentScore;

    if (config._f.length === 0) {
      getParsingFlags(config).invalidFormat = true;
      config._d = new Date(NaN);
      return;
    }

    for (i = 0; i < config._f.length; i++) {
      currentScore = 0;
      tempConfig = copyConfig({}, config);
      if (config._useUTC != null) {
        tempConfig._useUTC = config._useUTC;
      }
      tempConfig._f = config._f[i];
      configFromStringAndFormat(tempConfig);

      if (!isValid(tempConfig)) {
        continue;
      }

      // if there is any input that was not parsed add a penalty for that format
      currentScore += getParsingFlags(tempConfig).charsLeftOver;

      //or tokens
      currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;

      getParsingFlags(tempConfig).score = currentScore;

      if (scoreToBeat == null || currentScore < scoreToBeat) {
        scoreToBeat = currentScore;
        bestMoment = tempConfig;
      }
    }

    extend(config, bestMoment || tempConfig);
  }

  function configFromObject(config) {
    if (config._d) {
      return;
    }

    var i = normalizeObjectUnits(config._i);
    config._a = map([i.year, i.month, i.day || i.date, i.hour, i.minute, i.second, i.millisecond], function (obj) {
      return obj && parseInt(obj, 10);
    });

    configFromArray(config);
  }

  function createFromConfig (config) {
    var res = new Moment(checkOverflow(prepareConfig(config)));
    if (res._nextDay) {
      // Adding is smart enough around DST
      res.add(1, 'd');
      res._nextDay = undefined;
    }

    return res;
  }

  function prepareConfig (config) {
    var input = config._i,
      format = config._f;

    config._locale = config._locale || getLocale(config._l);

    if (input === null || (format === undefined && input === '')) {
      return createInvalid({nullInput: true});
    }

    if (typeof input === 'string') {
      config._i = input = config._locale.preparse(input);
    }

    if (isMoment(input)) {
      return new Moment(checkOverflow(input));
    } else if (isDate(input)) {
      config._d = input;
    } else if (isArray(format)) {
      configFromStringAndArray(config);
    } else if (format) {
      configFromStringAndFormat(config);
    }  else {
      configFromInput(config);
    }

    if (!isValid(config)) {
      config._d = null;
    }

    return config;
  }

  function configFromInput(config) {
    var input = config._i;
    if (isUndefined(input)) {
      config._d = new Date(hooks.now());
    } else if (isDate(input)) {
      config._d = new Date(input.valueOf());
    } else if (typeof input === 'string') {
      configFromString(config);
    } else if (isArray(input)) {
      config._a = map(input.slice(0), function (obj) {
        return parseInt(obj, 10);
      });
      configFromArray(config);
    } else if (isObject(input)) {
      configFromObject(config);
    } else if (isNumber(input)) {
      // from milliseconds
      config._d = new Date(input);
    } else {
      hooks.createFromInputFallback(config);
    }
  }

  function createLocalOrUTC (input, format, locale, strict, isUTC) {
    var c = {};

    if (locale === true || locale === false) {
      strict = locale;
      locale = undefined;
    }

    if ((isObject(input) && isObjectEmpty(input)) ||
      (isArray(input) && input.length === 0)) {
      input = undefined;
    }
    // object construction must be done this way.
    // https://github.com/moment/moment/issues/1423
    c._isAMomentObject = true;
    c._useUTC = c._isUTC = isUTC;
    c._l = locale;
    c._i = input;
    c._f = format;
    c._strict = strict;

    return createFromConfig(c);
  }

  function createLocal (input, format, locale, strict) {
    return createLocalOrUTC(input, format, locale, strict, false);
  }

  var prototypeMin = deprecate(
    'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',
    function () {
      var other = createLocal.apply(null, arguments);
      if (this.isValid() && other.isValid()) {
        return other < this ? this : other;
      } else {
        return createInvalid();
      }
    }
  );

  var prototypeMax = deprecate(
    'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',
    function () {
      var other = createLocal.apply(null, arguments);
      if (this.isValid() && other.isValid()) {
        return other > this ? this : other;
      } else {
        return createInvalid();
      }
    }
  );

// Pick a moment m from moments so that m[fn](other) is true for all
// other. This relies on the function fn to be transitive.
//
// moments should either be an array of moment objects or an array, whose
// first element is an array of moment objects.
  function pickBy(fn, moments) {
    var res, i;
    if (moments.length === 1 && isArray(moments[0])) {
      moments = moments[0];
    }
    if (!moments.length) {
      return createLocal();
    }
    res = moments[0];
    for (i = 1; i < moments.length; ++i) {
      if (!moments[i].isValid() || moments[i][fn](res)) {
        res = moments[i];
      }
    }
    return res;
  }

// TODO: Use [].sort instead?
  function min () {
    var args = [].slice.call(arguments, 0);

    return pickBy('isBefore', args);
  }

  function max () {
    var args = [].slice.call(arguments, 0);

    return pickBy('isAfter', args);
  }

  var now = function () {
    return Date.now ? Date.now() : +(new Date());
  };

  var ordering = ['year', 'quarter', 'month', 'week', 'day', 'hour', 'minute', 'second', 'millisecond'];

  function isDurationValid(m) {
    for (var key in m) {
      if (!(ordering.indexOf(key) !== -1 && (m[key] == null || !isNaN(m[key])))) {
        return false;
      }
    }

    var unitHasDecimal = false;
    for (var i = 0; i < ordering.length; ++i) {
      if (m[ordering[i]]) {
        if (unitHasDecimal) {
          return false; // only allow non-integers for smallest unit
        }
        if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
          unitHasDecimal = true;
        }
      }
    }

    return true;
  }

  function isValid$1() {
    return this._isValid;
  }

  function createInvalid$1() {
    return createDuration(NaN);
  }

  function Duration (duration) {
    var normalizedInput = normalizeObjectUnits(duration),
      years = normalizedInput.year || 0,
      quarters = normalizedInput.quarter || 0,
      months = normalizedInput.month || 0,
      weeks = normalizedInput.week || 0,
      days = normalizedInput.day || 0,
      hours = normalizedInput.hour || 0,
      minutes = normalizedInput.minute || 0,
      seconds = normalizedInput.second || 0,
      milliseconds = normalizedInput.millisecond || 0;

    this._isValid = isDurationValid(normalizedInput);

    // representation for dateAddRemove
    this._milliseconds = +milliseconds +
      seconds * 1e3 + // 1000
      minutes * 6e4 + // 1000 * 60
      hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
    // Because of dateAddRemove treats 24 hours as different from a
    // day when working around DST, we need to store them separately
    this._days = +days +
      weeks * 7;
    // It is impossible translate months into days without knowing
    // which months you are are talking about, so we have to store
    // it separately.
    this._months = +months +
      quarters * 3 +
      years * 12;

    this._data = {};

    this._locale = getLocale();

    this._bubble();
  }

  function isDuration (obj) {
    return obj instanceof Duration;
  }

  function absRound (number) {
    if (number < 0) {
      return Math.round(-1 * number) * -1;
    } else {
      return Math.round(number);
    }
  }

// FORMATTING

  function offset (token, separator) {
    addFormatToken(token, 0, 0, function () {
      var offset = this.utcOffset();
      var sign = '+';
      if (offset < 0) {
        offset = -offset;
        sign = '-';
      }
      return sign + zeroFill(~~(offset / 60), 2) + separator + zeroFill(~~(offset) % 60, 2);
    });
  }

  offset('Z', ':');
  offset('ZZ', '');

// PARSING

  addRegexToken('Z',  matchShortOffset);
  addRegexToken('ZZ', matchShortOffset);
  addParseToken(['Z', 'ZZ'], function (input, array, config) {
    config._useUTC = true;
    config._tzm = offsetFromString(matchShortOffset, input);
  });

// HELPERS

// timezone chunker
// '+10:00' > ['10',  '00']
// '-1530'  > ['-15', '30']
  var chunkOffset = /([\+\-]|\d\d)/gi;

  function offsetFromString(matcher, string) {
    var matches = (string || '').match(matcher);

    if (matches === null) {
      return null;
    }

    var chunk   = matches[matches.length - 1] || [];
    var parts   = (chunk + '').match(chunkOffset) || ['-', 0, 0];
    var minutes = +(parts[1] * 60) + toInt(parts[2]);

    return minutes === 0 ?
      0 :
      parts[0] === '+' ? minutes : -minutes;
  }

// Return a moment from input, that is local/utc/zone equivalent to model.
  function cloneWithOffset(input, model) {
    var res, diff;
    if (model._isUTC) {
      res = model.clone();
      diff = (isMoment(input) || isDate(input) ? input.valueOf() : createLocal(input).valueOf()) - res.valueOf();
      // Use low-level api, because this fn is low-level api.
      res._d.setTime(res._d.valueOf() + diff);
      hooks.updateOffset(res, false);
      return res;
    } else {
      return createLocal(input).local();
    }
  }

  function getDateOffset (m) {
    // On Firefox.24 Date#getTimezoneOffset returns a floating point.
    // https://github.com/moment/moment/pull/1871
    return -Math.round(m._d.getTimezoneOffset() / 15) * 15;
  }

// HOOKS

// This function will be called whenever a moment is mutated.
// It is intended to keep the offset in sync with the timezone.
  hooks.updateOffset = function () {};

// MOMENTS

// keepLocalTime = true means only change the timezone, without
// affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
// 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
// +0200, so we adjust the time as needed, to be valid.
//
// Keeping the time actually adds/subtracts (one hour)
// from the actual represented time. That is why we call updateOffset
// a second time. In case it wants us to change the offset again
// _changeInProgress == true case, then we have to adjust, because
// there is no such time in the given timezone.
  function getSetOffset (input, keepLocalTime, keepMinutes) {
    var offset = this._offset || 0,
      localAdjust;
    if (!this.isValid()) {
      return input != null ? this : NaN;
    }
    if (input != null) {
      if (typeof input === 'string') {
        input = offsetFromString(matchShortOffset, input);
        if (input === null) {
          return this;
        }
      } else if (Math.abs(input) < 16 && !keepMinutes) {
        input = input * 60;
      }
      if (!this._isUTC && keepLocalTime) {
        localAdjust = getDateOffset(this);
      }
      this._offset = input;
      this._isUTC = true;
      if (localAdjust != null) {
        this.add(localAdjust, 'm');
      }
      if (offset !== input) {
        if (!keepLocalTime || this._changeInProgress) {
          addSubtract(this, createDuration(input - offset, 'm'), 1, false);
        } else if (!this._changeInProgress) {
          this._changeInProgress = true;
          hooks.updateOffset(this, true);
          this._changeInProgress = null;
        }
      }
      return this;
    } else {
      return this._isUTC ? offset : getDateOffset(this);
    }
  }

  function getSetZone (input, keepLocalTime) {
    if (input != null) {
      if (typeof input !== 'string') {
        input = -input;
      }

      this.utcOffset(input, keepLocalTime);

      return this;
    } else {
      return -this.utcOffset();
    }
  }

  function setOffsetToUTC (keepLocalTime) {
    return this.utcOffset(0, keepLocalTime);
  }

  function setOffsetToLocal (keepLocalTime) {
    if (this._isUTC) {
      this.utcOffset(0, keepLocalTime);
      this._isUTC = false;

      if (keepLocalTime) {
        this.subtract(getDateOffset(this), 'm');
      }
    }
    return this;
  }

  function setOffsetToParsedOffset () {
    if (this._tzm != null) {
      this.utcOffset(this._tzm, false, true);
    } else if (typeof this._i === 'string') {
      var tZone = offsetFromString(matchOffset, this._i);
      if (tZone != null) {
        this.utcOffset(tZone);
      }
      else {
        this.utcOffset(0, true);
      }
    }
    return this;
  }

  function hasAlignedHourOffset (input) {
    if (!this.isValid()) {
      return false;
    }
    input = input ? createLocal(input).utcOffset() : 0;

    return (this.utcOffset() - input) % 60 === 0;
  }

  function isDaylightSavingTime () {
    return (
      this.utcOffset() > this.clone().month(0).utcOffset() ||
      this.utcOffset() > this.clone().month(5).utcOffset()
    );
  }

  function isDaylightSavingTimeShifted () {
    if (!isUndefined(this._isDSTShifted)) {
      return this._isDSTShifted;
    }

    var c = {};

    copyConfig(c, this);
    c = prepareConfig(c);

    if (c._a) {
      var other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
      this._isDSTShifted = this.isValid() &&
        compareArrays(c._a, other.toArray()) > 0;
    } else {
      this._isDSTShifted = false;
    }

    return this._isDSTShifted;
  }

  function isLocal () {
    return this.isValid() ? !this._isUTC : false;
  }

  function isUtcOffset () {
    return this.isValid() ? this._isUTC : false;
  }

  function isUtc () {
    return this.isValid() ? this._isUTC && this._offset === 0 : false;
  }

// ASP.NET json date format regex
  var aspNetRegex = /^(\-)?(?:(\d*)[. ])?(\d+)\:(\d+)(?:\:(\d+)(\.\d*)?)?$/;

// from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
// somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
// and further modified to allow for strings containing both week and day
  var isoRegex = /^(-)?P(?:(-?[0-9,.]*)Y)?(?:(-?[0-9,.]*)M)?(?:(-?[0-9,.]*)W)?(?:(-?[0-9,.]*)D)?(?:T(?:(-?[0-9,.]*)H)?(?:(-?[0-9,.]*)M)?(?:(-?[0-9,.]*)S)?)?$/;

  function createDuration (input, key) {
    var duration = input,
      // matching against regexp is expensive, do it on demand
      match = null,
      sign,
      ret,
      diffRes;

    if (isDuration(input)) {
      duration = {
        ms : input._milliseconds,
        d  : input._days,
        M  : input._months
      };
    } else if (isNumber(input)) {
      duration = {};
      if (key) {
        duration[key] = input;
      } else {
        duration.milliseconds = input;
      }
    } else if (!!(match = aspNetRegex.exec(input))) {
      sign = (match[1] === '-') ? -1 : 1;
      duration = {
        y  : 0,
        d  : toInt(match[DATE])                         * sign,
        h  : toInt(match[HOUR])                         * sign,
        m  : toInt(match[MINUTE])                       * sign,
        s  : toInt(match[SECOND])                       * sign,
        ms : toInt(absRound(match[MILLISECOND] * 1000)) * sign // the millisecond decimal point is included in the match
      };
    } else if (!!(match = isoRegex.exec(input))) {
      sign = (match[1] === '-') ? -1 : 1;
      duration = {
        y : parseIso(match[2], sign),
        M : parseIso(match[3], sign),
        w : parseIso(match[4], sign),
        d : parseIso(match[5], sign),
        h : parseIso(match[6], sign),
        m : parseIso(match[7], sign),
        s : parseIso(match[8], sign)
      };
    } else if (duration == null) {// checks for null or undefined
      duration = {};
    } else if (typeof duration === 'object' && ('from' in duration || 'to' in duration)) {
      diffRes = momentsDifference(createLocal(duration.from), createLocal(duration.to));

      duration = {};
      duration.ms = diffRes.milliseconds;
      duration.M = diffRes.months;
    }

    ret = new Duration(duration);

    if (isDuration(input) && hasOwnProp(input, '_locale')) {
      ret._locale = input._locale;
    }

    return ret;
  }

  createDuration.fn = Duration.prototype;
  createDuration.invalid = createInvalid$1;

  function parseIso (inp, sign) {
    // We'd normally use ~~inp for this, but unfortunately it also
    // converts floats to ints.
    // inp may be undefined, so careful calling replace on it.
    var res = inp && parseFloat(inp.replace(',', '.'));
    // apply sign while we're at it
    return (isNaN(res) ? 0 : res) * sign;
  }

  function positiveMomentsDifference(base, other) {
    var res = {milliseconds: 0, months: 0};

    res.months = other.month() - base.month() +
      (other.year() - base.year()) * 12;
    if (base.clone().add(res.months, 'M').isAfter(other)) {
      --res.months;
    }

    res.milliseconds = +other - +(base.clone().add(res.months, 'M'));

    return res;
  }

  function momentsDifference(base, other) {
    var res;
    if (!(base.isValid() && other.isValid())) {
      return {milliseconds: 0, months: 0};
    }

    other = cloneWithOffset(other, base);
    if (base.isBefore(other)) {
      res = positiveMomentsDifference(base, other);
    } else {
      res = positiveMomentsDifference(other, base);
      res.milliseconds = -res.milliseconds;
      res.months = -res.months;
    }

    return res;
  }

// TODO: remove 'name' arg after deprecation is removed
  function createAdder(direction, name) {
    return function (val, period) {
      var dur, tmp;
      //invert the arguments, but complain about it
      if (period !== null && !isNaN(+period)) {
        deprecateSimple(name, 'moment().' + name  + '(period, number) is deprecated. Please use moment().' + name + '(number, period). ' +
          'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.');
        tmp = val; val = period; period = tmp;
      }

      val = typeof val === 'string' ? +val : val;
      dur = createDuration(val, period);
      addSubtract(this, dur, direction);
      return this;
    };
  }

  function addSubtract (mom, duration, isAdding, updateOffset) {
    var milliseconds = duration._milliseconds,
      days = absRound(duration._days),
      months = absRound(duration._months);

    if (!mom.isValid()) {
      // No op
      return;
    }

    updateOffset = updateOffset == null ? true : updateOffset;

    if (milliseconds) {
      mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);
    }
    if (days) {
      set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);
    }
    if (months) {
      setMonth(mom, get(mom, 'Month') + months * isAdding);
    }
    if (updateOffset) {
      hooks.updateOffset(mom, days || months);
    }
  }

  var add      = createAdder(1, 'add');
  var subtract = createAdder(-1, 'subtract');

  function getCalendarFormat(myMoment, now) {
    var diff = myMoment.diff(now, 'days', true);
    return diff < -6 ? 'sameElse' :
      diff < -1 ? 'lastWeek' :
        diff < 0 ? 'lastDay' :
          diff < 1 ? 'sameDay' :
            diff < 2 ? 'nextDay' :
              diff < 7 ? 'nextWeek' : 'sameElse';
  }

  function calendar$1 (time, formats) {
    // We want to compare the start of today, vs this.
    // Getting start-of-today depends on whether we're local/utc/offset or not.
    var now = time || createLocal(),
      sod = cloneWithOffset(now, this).startOf('day'),
      format = hooks.calendarFormat(this, sod) || 'sameElse';

    var output = formats && (isFunction(formats[format]) ? formats[format].call(this, now) : formats[format]);

    return this.format(output || this.localeData().calendar(format, this, createLocal(now)));
  }

  function clone () {
    return new Moment(this);
  }

  function isAfter (input, units) {
    var localInput = isMoment(input) ? input : createLocal(input);
    if (!(this.isValid() && localInput.isValid())) {
      return false;
    }
    units = normalizeUnits(!isUndefined(units) ? units : 'millisecond');
    if (units === 'millisecond') {
      return this.valueOf() > localInput.valueOf();
    } else {
      return localInput.valueOf() < this.clone().startOf(units).valueOf();
    }
  }

  function isBefore (input, units) {
    var localInput = isMoment(input) ? input : createLocal(input);
    if (!(this.isValid() && localInput.isValid())) {
      return false;
    }
    units = normalizeUnits(!isUndefined(units) ? units : 'millisecond');
    if (units === 'millisecond') {
      return this.valueOf() < localInput.valueOf();
    } else {
      return this.clone().endOf(units).valueOf() < localInput.valueOf();
    }
  }

  function isBetween (from, to, units, inclusivity) {
    inclusivity = inclusivity || '()';
    return (inclusivity[0] === '(' ? this.isAfter(from, units) : !this.isBefore(from, units)) &&
      (inclusivity[1] === ')' ? this.isBefore(to, units) : !this.isAfter(to, units));
  }

  function isSame (input, units) {
    var localInput = isMoment(input) ? input : createLocal(input),
      inputMs;
    if (!(this.isValid() && localInput.isValid())) {
      return false;
    }
    units = normalizeUnits(units || 'millisecond');
    if (units === 'millisecond') {
      return this.valueOf() === localInput.valueOf();
    } else {
      inputMs = localInput.valueOf();
      return this.clone().startOf(units).valueOf() <= inputMs && inputMs <= this.clone().endOf(units).valueOf();
    }
  }

  function isSameOrAfter (input, units) {
    return this.isSame(input, units) || this.isAfter(input,units);
  }

  function isSameOrBefore (input, units) {
    return this.isSame(input, units) || this.isBefore(input,units);
  }

  function diff (input, units, asFloat) {
    var that,
      zoneDelta,
      delta, output;

    if (!this.isValid()) {
      return NaN;
    }

    that = cloneWithOffset(input, this);

    if (!that.isValid()) {
      return NaN;
    }

    zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;

    units = normalizeUnits(units);

    if (units === 'year' || units === 'month' || units === 'quarter') {
      output = monthDiff(this, that);
      if (units === 'quarter') {
        output = output / 3;
      } else if (units === 'year') {
        output = output / 12;
      }
    } else {
      delta = this - that;
      output = units === 'second' ? delta / 1e3 : // 1000
        units === 'minute' ? delta / 6e4 : // 1000 * 60
          units === 'hour' ? delta / 36e5 : // 1000 * 60 * 60
            units === 'day' ? (delta - zoneDelta) / 864e5 : // 1000 * 60 * 60 * 24, negate dst
              units === 'week' ? (delta - zoneDelta) / 6048e5 : // 1000 * 60 * 60 * 24 * 7, negate dst
                delta;
    }
    return asFloat ? output : absFloor(output);
  }

  function monthDiff (a, b) {
    // difference in months
    var wholeMonthDiff = ((b.year() - a.year()) * 12) + (b.month() - a.month()),
      // b is in (anchor - 1 month, anchor + 1 month)
      anchor = a.clone().add(wholeMonthDiff, 'months'),
      anchor2, adjust;

    if (b - anchor < 0) {
      anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');
      // linear across the month
      adjust = (b - anchor) / (anchor - anchor2);
    } else {
      anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');
      // linear across the month
      adjust = (b - anchor) / (anchor2 - anchor);
    }

    //check for negative zero, return zero if negative zero
    return -(wholeMonthDiff + adjust) || 0;
  }

  hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';
  hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';

  function toString () {
    return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
  }

  function toISOString() {
    if (!this.isValid()) {
      return null;
    }
    var m = this.clone().utc();
    if (m.year() < 0 || m.year() > 9999) {
      return formatMoment(m, 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]');
    }
    if (isFunction(Date.prototype.toISOString)) {
      // native implementation is ~50x faster, use it when we can
      return this.toDate().toISOString();
    }
    return formatMoment(m, 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]');
  }

  /**
   * Return a human readable representation of a moment that can
   * also be evaluated to get a new moment which is the same
   *
   * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
   */
  function inspect () {
    if (!this.isValid()) {
      return 'moment.invalid(/* ' + this._i + ' */)';
    }
    var func = 'moment';
    var zone = '';
    if (!this.isLocal()) {
      func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';
      zone = 'Z';
    }
    var prefix = '[' + func + '("]';
    var year = (0 <= this.year() && this.year() <= 9999) ? 'YYYY' : 'YYYYYY';
    var datetime = '-MM-DD[T]HH:mm:ss.SSS';
    var suffix = zone + '[")]';

    return this.format(prefix + year + datetime + suffix);
  }

  function format (inputString) {
    if (!inputString) {
      inputString = this.isUtc() ? hooks.defaultFormatUtc : hooks.defaultFormat;
    }
    var output = formatMoment(this, inputString);
    return this.localeData().postformat(output);
  }

  function from (time, withoutSuffix) {
    if (this.isValid() &&
      ((isMoment(time) && time.isValid()) ||
        createLocal(time).isValid())) {
      return createDuration({to: this, from: time}).locale(this.locale()).humanize(!withoutSuffix);
    } else {
      return this.localeData().invalidDate();
    }
  }

  function fromNow (withoutSuffix) {
    return this.from(createLocal(), withoutSuffix);
  }

  function to (time, withoutSuffix) {
    if (this.isValid() &&
      ((isMoment(time) && time.isValid()) ||
        createLocal(time).isValid())) {
      return createDuration({from: this, to: time}).locale(this.locale()).humanize(!withoutSuffix);
    } else {
      return this.localeData().invalidDate();
    }
  }

  function toNow (withoutSuffix) {
    return this.to(createLocal(), withoutSuffix);
  }

// If passed a locale key, it will set the locale for this
// instance.  Otherwise, it will return the locale configuration
// variables for this instance.
  function locale (key) {
    var newLocaleData;

    if (key === undefined) {
      return this._locale._abbr;
    } else {
      newLocaleData = getLocale(key);
      if (newLocaleData != null) {
        this._locale = newLocaleData;
      }
      return this;
    }
  }

  var lang = deprecate(
    'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',
    function (key) {
      if (key === undefined) {
        return this.localeData();
      } else {
        return this.locale(key);
      }
    }
  );

  function localeData () {
    return this._locale;
  }

  function startOf (units) {
    units = normalizeUnits(units);
    // the following switch intentionally omits break keywords
    // to utilize falling through the cases.
    switch (units) {
      case 'year':
        this.month(0);
      /* falls through */
      case 'quarter':
      case 'month':
        this.date(1);
      /* falls through */
      case 'week':
      case 'isoWeek':
      case 'day':
      case 'date':
        this.hours(0);
      /* falls through */
      case 'hour':
        this.minutes(0);
      /* falls through */
      case 'minute':
        this.seconds(0);
      /* falls through */
      case 'second':
        this.milliseconds(0);
    }

    // weeks are a special case
    if (units === 'week') {
      this.weekday(0);
    }
    if (units === 'isoWeek') {
      this.isoWeekday(1);
    }

    // quarters are also special
    if (units === 'quarter') {
      this.month(Math.floor(this.month() / 3) * 3);
    }

    return this;
  }

  function endOf (units) {
    units = normalizeUnits(units);
    if (units === undefined || units === 'millisecond') {
      return this;
    }

    // 'date' is an alias for 'day', so it should be considered as such.
    if (units === 'date') {
      units = 'day';
    }

    return this.startOf(units).add(1, (units === 'isoWeek' ? 'week' : units)).subtract(1, 'ms');
  }

  function valueOf () {
    return this._d.valueOf() - ((this._offset || 0) * 60000);
  }

  function unix () {
    return Math.floor(this.valueOf() / 1000);
  }

  function toDate () {
    return new Date(this.valueOf());
  }

  function toArray () {
    var m = this;
    return [m.year(), m.month(), m.date(), m.hour(), m.minute(), m.second(), m.millisecond()];
  }

  function toObject () {
    var m = this;
    return {
      years: m.year(),
      months: m.month(),
      date: m.date(),
      hours: m.hours(),
      minutes: m.minutes(),
      seconds: m.seconds(),
      milliseconds: m.milliseconds()
    };
  }

  function toJSON () {
    // new Date(NaN).toJSON() === null
    return this.isValid() ? this.toISOString() : null;
  }

  function isValid$2 () {
    return isValid(this);
  }

  function parsingFlags () {
    return extend({}, getParsingFlags(this));
  }

  function invalidAt () {
    return getParsingFlags(this).overflow;
  }

  function creationData() {
    return {
      input: this._i,
      format: this._f,
      locale: this._locale,
      isUTC: this._isUTC,
      strict: this._strict
    };
  }

// FORMATTING

  addFormatToken(0, ['gg', 2], 0, function () {
    return this.weekYear() % 100;
  });

  addFormatToken(0, ['GG', 2], 0, function () {
    return this.isoWeekYear() % 100;
  });

  function addWeekYearFormatToken (token, getter) {
    addFormatToken(0, [token, token.length], 0, getter);
  }

  addWeekYearFormatToken('gggg',     'weekYear');
  addWeekYearFormatToken('ggggg',    'weekYear');
  addWeekYearFormatToken('GGGG',  'isoWeekYear');
  addWeekYearFormatToken('GGGGG', 'isoWeekYear');

// ALIASES

  addUnitAlias('weekYear', 'gg');
  addUnitAlias('isoWeekYear', 'GG');

// PRIORITY

  addUnitPriority('weekYear', 1);
  addUnitPriority('isoWeekYear', 1);


// PARSING

  addRegexToken('G',      matchSigned);
  addRegexToken('g',      matchSigned);
  addRegexToken('GG',     match1to2, match2);
  addRegexToken('gg',     match1to2, match2);
  addRegexToken('GGGG',   match1to4, match4);
  addRegexToken('gggg',   match1to4, match4);
  addRegexToken('GGGGG',  match1to6, match6);
  addRegexToken('ggggg',  match1to6, match6);

  addWeekParseToken(['gggg', 'ggggg', 'GGGG', 'GGGGG'], function (input, week, config, token) {
    week[token.substr(0, 2)] = toInt(input);
  });

  addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
    week[token] = hooks.parseTwoDigitYear(input);
  });

// MOMENTS

  function getSetWeekYear (input) {
    return getSetWeekYearHelper.call(this,
      input,
      this.week(),
      this.weekday(),
      this.localeData()._week.dow,
      this.localeData()._week.doy);
  }

  function getSetISOWeekYear (input) {
    return getSetWeekYearHelper.call(this,
      input, this.isoWeek(), this.isoWeekday(), 1, 4);
  }

  function getISOWeeksInYear () {
    return weeksInYear(this.year(), 1, 4);
  }

  function getWeeksInYear () {
    var weekInfo = this.localeData()._week;
    return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
  }

  function getSetWeekYearHelper(input, week, weekday, dow, doy) {
    var weeksTarget;
    if (input == null) {
      return weekOfYear(this, dow, doy).year;
    } else {
      weeksTarget = weeksInYear(input, dow, doy);
      if (week > weeksTarget) {
        week = weeksTarget;
      }
      return setWeekAll.call(this, input, week, weekday, dow, doy);
    }
  }

  function setWeekAll(weekYear, week, weekday, dow, doy) {
    var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
      date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);

    this.year(date.getUTCFullYear());
    this.month(date.getUTCMonth());
    this.date(date.getUTCDate());
    return this;
  }

// FORMATTING

  addFormatToken('Q', 0, 'Qo', 'quarter');

// ALIASES

  addUnitAlias('quarter', 'Q');

// PRIORITY

  addUnitPriority('quarter', 7);

// PARSING

  addRegexToken('Q', match1);
  addParseToken('Q', function (input, array) {
    array[MONTH] = (toInt(input) - 1) * 3;
  });

// MOMENTS

  function getSetQuarter (input) {
    return input == null ? Math.ceil((this.month() + 1) / 3) : this.month((input - 1) * 3 + this.month() % 3);
  }

// FORMATTING

  addFormatToken('D', ['DD', 2], 'Do', 'date');

// ALIASES

  addUnitAlias('date', 'D');

// PRIOROITY
  addUnitPriority('date', 9);

// PARSING

  addRegexToken('D',  match1to2);
  addRegexToken('DD', match1to2, match2);
  addRegexToken('Do', function (isStrict, locale) {
    // TODO: Remove "ordinalParse" fallback in next major release.
    return isStrict ?
      (locale._dayOfMonthOrdinalParse || locale._ordinalParse) :
      locale._dayOfMonthOrdinalParseLenient;
  });

  addParseToken(['D', 'DD'], DATE);
  addParseToken('Do', function (input, array) {
    array[DATE] = toInt(input.match(match1to2)[0], 10);
  });

// MOMENTS

  var getSetDayOfMonth = makeGetSet('Date', true);

// FORMATTING

  addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');

// ALIASES

  addUnitAlias('dayOfYear', 'DDD');

// PRIORITY
  addUnitPriority('dayOfYear', 4);

// PARSING

  addRegexToken('DDD',  match1to3);
  addRegexToken('DDDD', match3);
  addParseToken(['DDD', 'DDDD'], function (input, array, config) {
    config._dayOfYear = toInt(input);
  });

// HELPERS

// MOMENTS

  function getSetDayOfYear (input) {
    var dayOfYear = Math.round((this.clone().startOf('day') - this.clone().startOf('year')) / 864e5) + 1;
    return input == null ? dayOfYear : this.add((input - dayOfYear), 'd');
  }

// FORMATTING

  addFormatToken('m', ['mm', 2], 0, 'minute');

// ALIASES

  addUnitAlias('minute', 'm');

// PRIORITY

  addUnitPriority('minute', 14);

// PARSING

  addRegexToken('m',  match1to2);
  addRegexToken('mm', match1to2, match2);
  addParseToken(['m', 'mm'], MINUTE);

// MOMENTS

  var getSetMinute = makeGetSet('Minutes', false);

// FORMATTING

  addFormatToken('s', ['ss', 2], 0, 'second');

// ALIASES

  addUnitAlias('second', 's');

// PRIORITY

  addUnitPriority('second', 15);

// PARSING

  addRegexToken('s',  match1to2);
  addRegexToken('ss', match1to2, match2);
  addParseToken(['s', 'ss'], SECOND);

// MOMENTS

  var getSetSecond = makeGetSet('Seconds', false);

// FORMATTING

  addFormatToken('S', 0, 0, function () {
    return ~~(this.millisecond() / 100);
  });

  addFormatToken(0, ['SS', 2], 0, function () {
    return ~~(this.millisecond() / 10);
  });

  addFormatToken(0, ['SSS', 3], 0, 'millisecond');
  addFormatToken(0, ['SSSS', 4], 0, function () {
    return this.millisecond() * 10;
  });
  addFormatToken(0, ['SSSSS', 5], 0, function () {
    return this.millisecond() * 100;
  });
  addFormatToken(0, ['SSSSSS', 6], 0, function () {
    return this.millisecond() * 1000;
  });
  addFormatToken(0, ['SSSSSSS', 7], 0, function () {
    return this.millisecond() * 10000;
  });
  addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
    return this.millisecond() * 100000;
  });
  addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
    return this.millisecond() * 1000000;
  });


// ALIASES

  addUnitAlias('millisecond', 'ms');

// PRIORITY

  addUnitPriority('millisecond', 16);

// PARSING

  addRegexToken('S',    match1to3, match1);
  addRegexToken('SS',   match1to3, match2);
  addRegexToken('SSS',  match1to3, match3);

  var token;
  for (token = 'SSSS'; token.length <= 9; token += 'S') {
    addRegexToken(token, matchUnsigned);
  }

  function parseMs(input, array) {
    array[MILLISECOND] = toInt(('0.' + input) * 1000);
  }

  for (token = 'S'; token.length <= 9; token += 'S') {
    addParseToken(token, parseMs);
  }
// MOMENTS

  var getSetMillisecond = makeGetSet('Milliseconds', false);

// FORMATTING

  addFormatToken('z',  0, 0, 'zoneAbbr');
  addFormatToken('zz', 0, 0, 'zoneName');

// MOMENTS

  function getZoneAbbr () {
    return this._isUTC ? 'UTC' : '';
  }

  function getZoneName () {
    return this._isUTC ? 'Coordinated Universal Time' : '';
  }

  var proto = Moment.prototype;

  proto.add               = add;
  proto.calendar          = calendar$1;
  proto.clone             = clone;
  proto.diff              = diff;
  proto.endOf             = endOf;
  proto.format            = format;
  proto.from              = from;
  proto.fromNow           = fromNow;
  proto.to                = to;
  proto.toNow             = toNow;
  proto.get               = stringGet;
  proto.invalidAt         = invalidAt;
  proto.isAfter           = isAfter;
  proto.isBefore          = isBefore;
  proto.isBetween         = isBetween;
  proto.isSame            = isSame;
  proto.isSameOrAfter     = isSameOrAfter;
  proto.isSameOrBefore    = isSameOrBefore;
  proto.isValid           = isValid$2;
  proto.lang              = lang;
  proto.locale            = locale;
  proto.localeData        = localeData;
  proto.max               = prototypeMax;
  proto.min               = prototypeMin;
  proto.parsingFlags      = parsingFlags;
  proto.set               = stringSet;
  proto.startOf           = startOf;
  proto.subtract          = subtract;
  proto.toArray           = toArray;
  proto.toObject          = toObject;
  proto.toDate            = toDate;
  proto.toISOString       = toISOString;
  proto.inspect           = inspect;
  proto.toJSON            = toJSON;
  proto.toString          = toString;
  proto.unix              = unix;
  proto.valueOf           = valueOf;
  proto.creationData      = creationData;

// Year
  proto.year       = getSetYear;
  proto.isLeapYear = getIsLeapYear;

// Week Year
  proto.weekYear    = getSetWeekYear;
  proto.isoWeekYear = getSetISOWeekYear;

// Quarter
  proto.quarter = proto.quarters = getSetQuarter;

// Month
  proto.month       = getSetMonth;
  proto.daysInMonth = getDaysInMonth;

// Week
  proto.week           = proto.weeks        = getSetWeek;
  proto.isoWeek        = proto.isoWeeks     = getSetISOWeek;
  proto.weeksInYear    = getWeeksInYear;
  proto.isoWeeksInYear = getISOWeeksInYear;

// Day
  proto.date       = getSetDayOfMonth;
  proto.day        = proto.days             = getSetDayOfWeek;
  proto.weekday    = getSetLocaleDayOfWeek;
  proto.isoWeekday = getSetISODayOfWeek;
  proto.dayOfYear  = getSetDayOfYear;

// Hour
  proto.hour = proto.hours = getSetHour;

// Minute
  proto.minute = proto.minutes = getSetMinute;

// Second
  proto.second = proto.seconds = getSetSecond;

// Millisecond
  proto.millisecond = proto.milliseconds = getSetMillisecond;

// Offset
  proto.utcOffset            = getSetOffset;
  proto.utc                  = setOffsetToUTC;
  proto.local                = setOffsetToLocal;
  proto.parseZone            = setOffsetToParsedOffset;
  proto.hasAlignedHourOffset = hasAlignedHourOffset;
  proto.isDST                = isDaylightSavingTime;
  proto.isLocal              = isLocal;
  proto.isUtcOffset          = isUtcOffset;
  proto.isUtc                = isUtc;
  proto.isUTC                = isUtc;

// Timezone
  proto.zoneAbbr = getZoneAbbr;
  proto.zoneName = getZoneName;

// Deprecations
  proto.dates  = deprecate('dates accessor is deprecated. Use date instead.', getSetDayOfMonth);
  proto.months = deprecate('months accessor is deprecated. Use month instead', getSetMonth);
  proto.years  = deprecate('years accessor is deprecated. Use year instead', getSetYear);
  proto.zone   = deprecate('moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/', getSetZone);
  proto.isDSTShifted = deprecate('isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information', isDaylightSavingTimeShifted);

  function createUnix (input) {
    return createLocal(input * 1000);
  }

  function createInZone () {
    return createLocal.apply(null, arguments).parseZone();
  }

  function preParsePostFormat (string) {
    return string;
  }

  var proto$1 = Locale.prototype;

  proto$1.calendar        = calendar;
  proto$1.longDateFormat  = longDateFormat;
  proto$1.invalidDate     = invalidDate;
  proto$1.ordinal         = ordinal;
  proto$1.preparse        = preParsePostFormat;
  proto$1.postformat      = preParsePostFormat;
  proto$1.relativeTime    = relativeTime;
  proto$1.pastFuture      = pastFuture;
  proto$1.set             = set;

// Month
  proto$1.months            =        localeMonths;
  proto$1.monthsShort       =        localeMonthsShort;
  proto$1.monthsParse       =        localeMonthsParse;
  proto$1.monthsRegex       = monthsRegex;
  proto$1.monthsShortRegex  = monthsShortRegex;

// Week
  proto$1.week = localeWeek;
  proto$1.firstDayOfYear = localeFirstDayOfYear;
  proto$1.firstDayOfWeek = localeFirstDayOfWeek;

// Day of Week
  proto$1.weekdays       =        localeWeekdays;
  proto$1.weekdaysMin    =        localeWeekdaysMin;
  proto$1.weekdaysShort  =        localeWeekdaysShort;
  proto$1.weekdaysParse  =        localeWeekdaysParse;

  proto$1.weekdaysRegex       =        weekdaysRegex;
  proto$1.weekdaysShortRegex  =        weekdaysShortRegex;
  proto$1.weekdaysMinRegex    =        weekdaysMinRegex;

// Hours
  proto$1.isPM = localeIsPM;
  proto$1.meridiem = localeMeridiem;

  function get$1 (format, index, field, setter) {
    var locale = getLocale();
    var utc = createUTC().set(setter, index);
    return locale[field](utc, format);
  }

  function listMonthsImpl (format, index, field) {
    if (isNumber(format)) {
      index = format;
      format = undefined;
    }

    format = format || '';

    if (index != null) {
      return get$1(format, index, field, 'month');
    }

    var i;
    var out = [];
    for (i = 0; i < 12; i++) {
      out[i] = get$1(format, i, field, 'month');
    }
    return out;
  }

// ()
// (5)
// (fmt, 5)
// (fmt)
// (true)
// (true, 5)
// (true, fmt, 5)
// (true, fmt)
  function listWeekdaysImpl (localeSorted, format, index, field) {
    if (typeof localeSorted === 'boolean') {
      if (isNumber(format)) {
        index = format;
        format = undefined;
      }

      format = format || '';
    } else {
      format = localeSorted;
      index = format;
      localeSorted = false;

      if (isNumber(format)) {
        index = format;
        format = undefined;
      }

      format = format || '';
    }

    var locale = getLocale(),
      shift = localeSorted ? locale._week.dow : 0;

    if (index != null) {
      return get$1(format, (index + shift) % 7, field, 'day');
    }

    var i;
    var out = [];
    for (i = 0; i < 7; i++) {
      out[i] = get$1(format, (i + shift) % 7, field, 'day');
    }
    return out;
  }

  function listMonths (format, index) {
    return listMonthsImpl(format, index, 'months');
  }

  function listMonthsShort (format, index) {
    return listMonthsImpl(format, index, 'monthsShort');
  }

  function listWeekdays (localeSorted, format, index) {
    return listWeekdaysImpl(localeSorted, format, index, 'weekdays');
  }

  function listWeekdaysShort (localeSorted, format, index) {
    return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');
  }

  function listWeekdaysMin (localeSorted, format, index) {
    return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');
  }

  getSetGlobalLocale('en', {
    dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
    ordinal : function (number) {
      var b = number % 10,
        output = (toInt(number % 100 / 10) === 1) ? 'th' :
          (b === 1) ? 'st' :
            (b === 2) ? 'nd' :
              (b === 3) ? 'rd' : 'th';
      return number + output;
    }
  });

// Side effect imports
  hooks.lang = deprecate('moment.lang is deprecated. Use moment.locale instead.', getSetGlobalLocale);
  hooks.langData = deprecate('moment.langData is deprecated. Use moment.localeData instead.', getLocale);

  var mathAbs = Math.abs;

  function abs () {
    var data           = this._data;

    this._milliseconds = mathAbs(this._milliseconds);
    this._days         = mathAbs(this._days);
    this._months       = mathAbs(this._months);

    data.milliseconds  = mathAbs(data.milliseconds);
    data.seconds       = mathAbs(data.seconds);
    data.minutes       = mathAbs(data.minutes);
    data.hours         = mathAbs(data.hours);
    data.months        = mathAbs(data.months);
    data.years         = mathAbs(data.years);

    return this;
  }

  function addSubtract$1 (duration, input, value, direction) {
    var other = createDuration(input, value);

    duration._milliseconds += direction * other._milliseconds;
    duration._days         += direction * other._days;
    duration._months       += direction * other._months;

    return duration._bubble();
  }

// supports only 2.0-style add(1, 's') or add(duration)
  function add$1 (input, value) {
    return addSubtract$1(this, input, value, 1);
  }

// supports only 2.0-style subtract(1, 's') or subtract(duration)
  function subtract$1 (input, value) {
    return addSubtract$1(this, input, value, -1);
  }

  function absCeil (number) {
    if (number < 0) {
      return Math.floor(number);
    } else {
      return Math.ceil(number);
    }
  }

  function bubble () {
    var milliseconds = this._milliseconds;
    var days         = this._days;
    var months       = this._months;
    var data         = this._data;
    var seconds, minutes, hours, years, monthsFromDays;

    // if we have a mix of positive and negative values, bubble down first
    // check: https://github.com/moment/moment/issues/2166
    if (!((milliseconds >= 0 && days >= 0 && months >= 0) ||
        (milliseconds <= 0 && days <= 0 && months <= 0))) {
      milliseconds += absCeil(monthsToDays(months) + days) * 864e5;
      days = 0;
      months = 0;
    }

    // The following code bubbles up values, see the tests for
    // examples of what that means.
    data.milliseconds = milliseconds % 1000;

    seconds           = absFloor(milliseconds / 1000);
    data.seconds      = seconds % 60;

    minutes           = absFloor(seconds / 60);
    data.minutes      = minutes % 60;

    hours             = absFloor(minutes / 60);
    data.hours        = hours % 24;

    days += absFloor(hours / 24);

    // convert days to months
    monthsFromDays = absFloor(daysToMonths(days));
    months += monthsFromDays;
    days -= absCeil(monthsToDays(monthsFromDays));

    // 12 months -> 1 year
    years = absFloor(months / 12);
    months %= 12;

    data.days   = days;
    data.months = months;
    data.years  = years;

    return this;
  }

  function daysToMonths (days) {
    // 400 years have 146097 days (taking into account leap year rules)
    // 400 years have 12 months === 4800
    return days * 4800 / 146097;
  }

  function monthsToDays (months) {
    // the reverse of daysToMonths
    return months * 146097 / 4800;
  }

  function as (units) {
    if (!this.isValid()) {
      return NaN;
    }
    var days;
    var months;
    var milliseconds = this._milliseconds;

    units = normalizeUnits(units);

    if (units === 'month' || units === 'year') {
      days   = this._days   + milliseconds / 864e5;
      months = this._months + daysToMonths(days);
      return units === 'month' ? months : months / 12;
    } else {
      // handle milliseconds separately because of floating point math errors (issue #1867)
      days = this._days + Math.round(monthsToDays(this._months));
      switch (units) {
        case 'week'   : return days / 7     + milliseconds / 6048e5;
        case 'day'    : return days         + milliseconds / 864e5;
        case 'hour'   : return days * 24    + milliseconds / 36e5;
        case 'minute' : return days * 1440  + milliseconds / 6e4;
        case 'second' : return days * 86400 + milliseconds / 1000;
        // Math.floor prevents floating point math errors here
        case 'millisecond': return Math.floor(days * 864e5) + milliseconds;
        default: throw new Error('Unknown unit ' + units);
      }
    }
  }

// TODO: Use this.as('ms')?
  function valueOf$1 () {
    if (!this.isValid()) {
      return NaN;
    }
    return (
      this._milliseconds +
      this._days * 864e5 +
      (this._months % 12) * 2592e6 +
      toInt(this._months / 12) * 31536e6
    );
  }

  function makeAs (alias) {
    return function () {
      return this.as(alias);
    };
  }

  var asMilliseconds = makeAs('ms');
  var asSeconds      = makeAs('s');
  var asMinutes      = makeAs('m');
  var asHours        = makeAs('h');
  var asDays         = makeAs('d');
  var asWeeks        = makeAs('w');
  var asMonths       = makeAs('M');
  var asYears        = makeAs('y');

  function get$2 (units) {
    units = normalizeUnits(units);
    return this.isValid() ? this[units + 's']() : NaN;
  }

  function makeGetter(name) {
    return function () {
      return this.isValid() ? this._data[name] : NaN;
    };
  }

  var milliseconds = makeGetter('milliseconds');
  var seconds      = makeGetter('seconds');
  var minutes      = makeGetter('minutes');
  var hours        = makeGetter('hours');
  var days         = makeGetter('days');
  var months       = makeGetter('months');
  var years        = makeGetter('years');

  function weeks () {
    return absFloor(this.days() / 7);
  }

  var round = Math.round;
  var thresholds = {
    ss: 44,         // a few seconds to seconds
    s : 45,         // seconds to minute
    m : 45,         // minutes to hour
    h : 22,         // hours to day
    d : 26,         // days to month
    M : 11          // months to year
  };

// helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
  function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
    return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
  }

  function relativeTime$1 (posNegDuration, withoutSuffix, locale) {
    var duration = createDuration(posNegDuration).abs();
    var seconds  = round(duration.as('s'));
    var minutes  = round(duration.as('m'));
    var hours    = round(duration.as('h'));
    var days     = round(duration.as('d'));
    var months   = round(duration.as('M'));
    var years    = round(duration.as('y'));

    var a = seconds <= thresholds.ss && ['s', seconds]  ||
      seconds < thresholds.s   && ['ss', seconds] ||
      minutes <= 1             && ['m']           ||
      minutes < thresholds.m   && ['mm', minutes] ||
      hours   <= 1             && ['h']           ||
      hours   < thresholds.h   && ['hh', hours]   ||
      days    <= 1             && ['d']           ||
      days    < thresholds.d   && ['dd', days]    ||
      months  <= 1             && ['M']           ||
      months  < thresholds.M   && ['MM', months]  ||
      years   <= 1             && ['y']           || ['yy', years];

    a[2] = withoutSuffix;
    a[3] = +posNegDuration > 0;
    a[4] = locale;
    return substituteTimeAgo.apply(null, a);
  }

// This function allows you to set the rounding function for relative time strings
  function getSetRelativeTimeRounding (roundingFunction) {
    if (roundingFunction === undefined) {
      return round;
    }
    if (typeof(roundingFunction) === 'function') {
      round = roundingFunction;
      return true;
    }
    return false;
  }

// This function allows you to set a threshold for relative time strings
  function getSetRelativeTimeThreshold (threshold, limit) {
    if (thresholds[threshold] === undefined) {
      return false;
    }
    if (limit === undefined) {
      return thresholds[threshold];
    }
    thresholds[threshold] = limit;
    if (threshold === 's') {
      thresholds.ss = limit - 1;
    }
    return true;
  }

  function humanize (withSuffix) {
    if (!this.isValid()) {
      return this.localeData().invalidDate();
    }

    var locale = this.localeData();
    var output = relativeTime$1(this, !withSuffix, locale);

    if (withSuffix) {
      output = locale.pastFuture(+this, output);
    }

    return locale.postformat(output);
  }

  var abs$1 = Math.abs;

  function toISOString$1() {
    // for ISO strings we do not use the normal bubbling rules:
    //  * milliseconds bubble up until they become hours
    //  * days do not bubble at all
    //  * months bubble up until they become years
    // This is because there is no context-free conversion between hours and days
    // (think of clock changes)
    // and also not between days and months (28-31 days per month)
    if (!this.isValid()) {
      return this.localeData().invalidDate();
    }

    var seconds = abs$1(this._milliseconds) / 1000;
    var days         = abs$1(this._days);
    var months       = abs$1(this._months);
    var minutes, hours, years;

    // 3600 seconds -> 60 minutes -> 1 hour
    minutes           = absFloor(seconds / 60);
    hours             = absFloor(minutes / 60);
    seconds %= 60;
    minutes %= 60;

    // 12 months -> 1 year
    years  = absFloor(months / 12);
    months %= 12;


    // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
    var Y = years;
    var M = months;
    var D = days;
    var h = hours;
    var m = minutes;
    var s = seconds;
    var total = this.asSeconds();

    if (!total) {
      // this is the same as C#'s (Noda) and python (isodate)...
      // but not other JS (goog.date)
      return 'P0D';
    }

    return (total < 0 ? '-' : '') +
      'P' +
      (Y ? Y + 'Y' : '') +
      (M ? M + 'M' : '') +
      (D ? D + 'D' : '') +
      ((h || m || s) ? 'T' : '') +
      (h ? h + 'H' : '') +
      (m ? m + 'M' : '') +
      (s ? s + 'S' : '');
  }

  var proto$2 = Duration.prototype;

  proto$2.isValid        = isValid$1;
  proto$2.abs            = abs;
  proto$2.add            = add$1;
  proto$2.subtract       = subtract$1;
  proto$2.as             = as;
  proto$2.asMilliseconds = asMilliseconds;
  proto$2.asSeconds      = asSeconds;
  proto$2.asMinutes      = asMinutes;
  proto$2.asHours        = asHours;
  proto$2.asDays         = asDays;
  proto$2.asWeeks        = asWeeks;
  proto$2.asMonths       = asMonths;
  proto$2.asYears        = asYears;
  proto$2.valueOf        = valueOf$1;
  proto$2._bubble        = bubble;
  proto$2.get            = get$2;
  proto$2.milliseconds   = milliseconds;
  proto$2.seconds        = seconds;
  proto$2.minutes        = minutes;
  proto$2.hours          = hours;
  proto$2.days           = days;
  proto$2.weeks          = weeks;
  proto$2.months         = months;
  proto$2.years          = years;
  proto$2.humanize       = humanize;
  proto$2.toISOString    = toISOString$1;
  proto$2.toString       = toISOString$1;
  proto$2.toJSON         = toISOString$1;
  proto$2.locale         = locale;
  proto$2.localeData     = localeData;

// Deprecations
  proto$2.toIsoString = deprecate('toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)', toISOString$1);
  proto$2.lang = lang;

// Side effect imports

// FORMATTING

  addFormatToken('X', 0, 0, 'unix');
  addFormatToken('x', 0, 0, 'valueOf');

// PARSING

  addRegexToken('x', matchSigned);
  addRegexToken('X', matchTimestamp);
  addParseToken('X', function (input, array, config) {
    config._d = new Date(parseFloat(input, 10) * 1000);
  });
  addParseToken('x', function (input, array, config) {
    config._d = new Date(toInt(input));
  });

// Side effect imports


  hooks.version = '2.18.1';

  setHookCallback(createLocal);

  hooks.fn                    = proto;
  hooks.min                   = min;
  hooks.max                   = max;
  hooks.now                   = now;
  hooks.utc                   = createUTC;
  hooks.unix                  = createUnix;
  hooks.months                = listMonths;
  hooks.isDate                = isDate;
  hooks.locale                = getSetGlobalLocale;
  hooks.invalid               = createInvalid;
  hooks.duration              = createDuration;
  hooks.isMoment              = isMoment;
  hooks.weekdays              = listWeekdays;
  hooks.parseZone             = createInZone;
  hooks.localeData            = getLocale;
  hooks.isDuration            = isDuration;
  hooks.monthsShort           = listMonthsShort;
  hooks.weekdaysMin           = listWeekdaysMin;
  hooks.defineLocale          = defineLocale;
  hooks.updateLocale          = updateLocale;
  hooks.locales               = listLocales;
  hooks.weekdaysShort         = listWeekdaysShort;
  hooks.normalizeUnits        = normalizeUnits;
  hooks.relativeTimeRounding = getSetRelativeTimeRounding;
  hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;
  hooks.calendarFormat        = getCalendarFormat;
  hooks.prototype             = proto;

  return hooks;

})));
},{}],2:[function(require,module,exports){
/**
 * pubsub.js
 *
 * A tiny, optimized, tested, standalone and robust
 * pubsub implementation supporting different javascript environments
 *
 * @author Federico "Lox" Lucignano <http://plus.ly/federico.lox>
 *
 * @see https://github.com/federico-lox/pubsub.js
 */

/*global define, module*/
(function (pubsubContext) {
  /**
   * @private
   */
  function init() {
    //the channel subscription hash
    var channels = {},
      //help minification
      funcType = Function;

    return {
      /*
       * @public
       *
       * Publish some data on a channel
       *
       * @param String channel The channel to publish on
       * @param Mixed argument The data to publish, the function supports
       * as many data parameters as needed
       *
       * @example Publish stuff on '/some/channel'.
       * Anything subscribed will be called with a function
       * signature like: function(a,b,c){ ... }
       *
       * PubSub.publish(
       *		"/some/channel", "a", "b",
       *		{total: 10, min: 1, max: 3}
       * );
       */
      publish: function () {
        //help minification
        var args = arguments;
        // args[0] is the channel
        var subs = channels[args[0]];
        var len;
        var params;
        var x;

        if (subs) {
          len = subs.length;
          params = (args.length > 1) ?
            Array.prototype.splice.call(args, 1) : [];

          //console.log("dex.bus.publish: this=");
          //console.dir(this);

          //run the callbacks asynchronously,
          //do not block the main execution process
          var that = this;
          setTimeout(
            function () {
              //executes callbacks in the order
              //in which they were registered
              for (x = 0; x < len; x += 1) {
                // Take on pubsubContext of caller.
                // REM: Seems to fix a memory leak; otherwise the scope of any subscribers
                // is window by default due to dex.bus being in window pubsubContext.
                subs[x].apply(that, params);
                //subs[x].apply(pubsubContext, params);
              }

              //clear references to allow garbage collection
              subs = undefined;
              pubsubContext = undefined;
              params = undefined;
            },
            0
          );
        }
      },

      /*
       * @public
       *
       * Register a callback on a channel
       *
       * @param String channel The channel to subscribe to
       * @param Function callback The event handler, any time something is
       * published on a subscribed channel, the callback will be called
       * with the published array as ordered arguments
       *
       * @return Array A handle which can be used to unsubscribe this
       * particular subscription
       *
       * @example PubSub.subscribe(
       *				"/some/channel",
       *				function(a, b, c){ ... }
       *			);
       */
      subscribe: function (channel, callback) {
        //console.log("PUBSUB: SUBSCRIBE(CHANNEL, CALLBACK, THIS)");
        //console.dir(channel);
        //console.dir(callback);
        //console.dir(this);
        if (typeof channel !== 'string') {
          throw "invalid or missing channel";
        }

        if (!(callback instanceof funcType)) {
          throw "invalid or missing callback";
        }

        if (!channels[channel]) {
          channels[channel] = [];
        }

        channels[channel].push(callback);

        return {channel: channel, callback: callback};
      },

      /*
       * @public
       *
       * Disconnect a subscribed function f.
       *
       * @param Mixed handle The return value from a subscribe call or the
       * name of a channel as a String
       * @param Function callback [OPTIONAL] The event handler originaally
       * registered, not needed if handle contains the return value
       * of subscribe
       *
       * @example
       * var handle = PubSub.subscribe("/some/channel", function(){});
       * PubSub.unsubscribe(handle);
       *
       * or
       *
       * PubSub.unsubscribe("/some/channel", callback);
       */
      unsubscribe: function (handle, callback) {
        if (handle.channel && handle.callback) {
          callback = handle.callback;
          handle = handle.channel;
        }

        if (typeof handle !== 'string') {
          throw "invalid or missing channel";
        }

        if (!(callback instanceof funcType)) {
          throw "invalid or missing callback";
        }

        var subs = channels[handle],
          x,
          y = (subs instanceof Array) ? subs.length : 0;

        for (x = 0; x < y; x += 1) {
          if (subs[x] === callback) {
            subs.splice(x, 1);
            break;
          }
        }
      }
    };
  }

  //UMD
  if (typeof define === 'function' && define.amd) {
    //AMD module
    define('pubsub', init);
  } else if (typeof module === 'object' && module.exports) {
    //CommonJS module
    module.exports = init();
  } else {
    //traditional namespace
    pubsubContext.PubSub = init();
  }
}(this));
},{}],3:[function(require,module,exports){
var dexlibs = window.dexbootstrap || window.dexjquery || {};

// Dependencies:
// https://github.com/federico-lox/pubsub.js
dexlibs.bus = require("../lib/pubsub");
dexlibs.moment = require("../lib/moment/moment");

module.exports = dexlibs;
},{"../lib/moment/moment":1,"../lib/pubsub":2}]},{},[3])(3)
});